Lets review Nikon Nikkor 2137 50mm f/1.8D prime lens for Nikon F mounts. As it can be seen from its name, it has 50 mm fixed focus and maximal and minimal apertures f/1.8 and f/22, accordingly, with 7 diaphragm blades. It has 46 degrees field of view for 36 mm FX sensors and 31 degrees 30 minutes for smaller DX sensors; minimal focusing distance is 0.45 m with support of automatic and manual focusing. It has 6 lens elements in 5 groups, they all are coated with protective and anti-reflective Super Integrated Coating. 52 mm optical filters of Screw-on standard can be attached to it. Objective sizes are 63.5 x 39 mm and weight is : 155 g. All in all it is good objective lens with fixed focus, small lens elements amount and auto focus function, which costs affordable amount of money, in comparison with other objective lenses. Nikon Nikkor 2137 50mm f/1.8D Auto Focus can be recommended to novice and experienced photographers, who want to capture beautiful and clear portrait and panorama photos without zoom.
Today we will review small studio level external USBsound cardsSteinberg UR : 242, 22 and 12. Their characteristics are mainly similar to middle-level Steinberg UR44 sound card, which was reviewed earlier. The same : USB connection, 192 kHz sampling rate and 24 bits precision, Yamaha D-PRE Class-A microphone preamplifiers, DSP Yamaha SSP2, DAW Cubase AI in the package and fully metal body. UR242 is different from older relative in less amount of connectors : 2 combined XLR/TRS 1/4″ jack inputs for microphone and linear input, 4 linear inputs on back panel and 1 TRS 1/4″ jackmonitor headphones output with separate volume control. It is powered from additional line adapter, maximal power, sent to headphones, is a 15 mW; its mass is 1.3 kg and sizes are 198 ( width ) x 47 ( height ) x 159 ( depth ) mm; it draws maximum 5 W of energy.
Steinberg UR 22 sound card
Steinberg UR22 is the audio card with even less amount of connectors ( there is need to note, that big amount of ports is not always necessary, for example, for small studio or for simple music and sounds listening ) : it has only 2 linear outputs, instead of 4. UR12 is simplified more : 1 microphone and 1 Hi-Z inputs and 2 linear outputs, without MIDI connectors. They are powered fully form USB port, maximal power, sent to headphones, is a 6 mW; mass of Steinberg UR22 is a 998 g and sizes are 159 ( width ) x 47 ( height ) x 159 ( depth ) mm; mass of Steinberg UR12 is a 850 g and sizes are 144 ( width ) x 47 ( height ) x 159 ( depth ) mm; they draw 2,5 W of energy. There is need to note, that cards’ prices go down in accordance with their functionality : 199.99 USD, 117.50 USD and 89.99 USD, accordingly, at the beginning of Autumn of 2015 year, so, there is ability to choose optimal variant for optimal price.
Steinberg UR 12 sound card
When Steinberg UR audio interfaces are used with DAWCubase, function True Integrated Monitoring becomes available in it, allowing to control all parameters of inputs and outputs, DSP effects and all other options of sound cards. Also devices support Loopback, allowing to mix all input channels and played back signal for sending to Internet streaming programs. They work in Mac OS X 10.7 and newer and Windows 7, 8, 8.1 and 10 with support of Core Audio, ASIO 2.0 and WDM interfaces for integration with modern DAWs : Avid Pro Tools, Ableton Live, Steinberg Cubase, FL Studio, Cackewalk Sonar, REAPER and others. Devices are Class Compliant and can work with Apple iPad 2 and newer with use of Apple iPad Camera Connection Kit or Lightning to USB Camera Adapter.
Dynamic range of Steinberg UR 242, 22 and 12 is a 101 dB ( A-Weighted ), to all microphone inputs there is ability to plug in phantom power +48 V; microphone and linear inputs and linear outputs can work in balanced and unbalanced modes, instrumental Hi-Z input works in unbalanced mode. Working frequency range of microphone/linear inputs of devices is 20 Hz – 22 kHz ( +0.1/-0.2 dB ); dynamic range is a 101 dB ( A-Weighted ); THD+N equals to 0.003%; maximal input signal level is a +24 dB; impedance is 4 kOhms; gain levels +12 – +56 dB; pad is down to -26 dB. Instrumental Hi-Z input has following characteristics : maximal input level is +8.5 dB; impedance is 1 MOhm; gain levels range is +4 – +48 dB; pad down to -26 dB. Linear inputs on back panels of devices have following characteristics : working frequency range is 20 Hz – 22 kHz ( +0.1/-0.2 dB ); dynamic range is 102 dB ( A-Weighted ); THD+N 0.003%; maximal input level is +22 dB; impedance is 30 kOhms ( for +4 dB input ) and 20 kOhms ( for -10 dB input ); for them signal modifications -12.5 dB ( for +4 dB input ) or +5.5 dB ( for -10 dB input ) can be switched. Working frequencies range of linear outputs is a 20 Hz – 22 kHz ( +0.1/-0.3 dB ); dynamic range is 104 dB ( A-Weighted ); THD+N 0.005%; maximal output level is +10 dB; impedance is 150 Ohms.
For installation of DAW Cubase AI there is need in connection to Internet for downloading of additional data with 500 MB size. Steinberg UR242 supports following DSP effects : Latency-free monitoring with FX ( dspMixFx ), True Integrated Monitoring with FX in Cubase, Guitar Amp Classics, REV-X Reverb, Sweet Spot Morphing Channel Strip, Phase switch per channel and High-Pass filter. Cubase AI – is a simplified version of professional DAW of Steinberg, it is based on the same audio engine with 32-bits float precision of calculations; can work simultaneously with 32 sound tracks, 48 MIDI tracks and 16 instrumental tracks with ability to record completed compositions to disk in WAV and AIFF formats, and in MP3 after purchsing of according module. For audio and MIDI editing in program following editors are built-in : Key, Score and Drum, pitch-shift instrument AudioWarp with support of ACID files format, which allows to use large amount of already created sounds samples, and Chord Track editor. 28 VST effects and processors are built into it for work with sounds, sampling synthesizer instrument HALion Sonic SE with 180 sound; mixing console with 4 Inserts and 4 Sends for each track and equalizer. DAW Cubase AI can work in 32 and 64 bits operating systems Windows and Mac OS X.
Package contains : Steinberg UR 242, 22 or 12 audio interfaces themselves, USB cable, power adapter ( for UR242 ), CD-ROM disk with drivers and programs, user’s guide and warranty card. On optical disk there are : drivers, devices control panel and DSP effects ( for UR242 ) : dspMixFx, UR242 Extension ( for connection to DAW Cubase ), Basic FX Suite ( VST effects and processors set ), Sweet Spot Morphing Channel Strip ( compressor and equalizer ), REV-X ( reverberation ) and Guitar Amp Classics ( program emulator of guitar amplifier ). All in all devices are very good, they have great digital abilities and connectors, as well as optimal prices; there is also need to note that there are audio interfaces of Behringer, Focusrite, Roland, ESI, M-Audio, Alesis and other companies, that are better, than these ones in analogue part. Steinberg UR 242, 22 and 12 are great solutions for small studios and concerts, as well as high-quality in-home sounds and music playback.
Steinberg – is a German company – creator of DAWs, VST effects, processors and instruments and also of audio interfaces, being based in Hamburg. It was established in 1984 year and now is being owned by Yamaha Corporation from 2004 year. At current moment Steinberg is one of the leading audio equipment and programs manufacturers in the world, for example, its professional DAW, instruments and hardware are used by following musicians : Hans Zimmer, Junkie XL, Justice, Kraftwerk, New Order and others.
Panasonic Lumix G 20mm / F1.7 II ASPH objective lens
Lets study Panasonic Lumix G 20mm / F1.7 II ASPH objective lens with 20 mm fixed focus for Micro Four Thirds mounts. Its diaphragm is set in F1.7 – F/16 range with use of 7 blades; minimal focusing distance is 0.2 m; field of view is 57 degrees. There are 7 lens elements in 5 groups set in the objective, 2 of them are aspherical ( to reduce image geometrical and color distortions ); all lens are covered with protective and anti-reflective multicoating. There is ability to attach 46 mm optical filters to it; objective lens sizes are 63 x 25.5 mm, its weight is : 87 g; its body is made from metal, which increases its durability and reliability. It has no image stabilization functions and have automatic focusing with use of built-in motor. Package contains : Panasonic Lumix G 20mm / F1.7 II ASPH objective lens itself, front and back caps, lens storage bag and user’s manual. There is need to note, that this objective lens can be used not only with Panasonic cameras, but with all other cameras, that support Micro Four Thirds mounts, for example, Olympus.
Lets continue our reviews of external sound cards with relatively new and very functional device Steinberg UR44. It is connected to computer via USB port, it is powered via it and additional power adapter. It works with sound with 192 kHz sampling rate ( and also supports rates 44.1, 48, 88.2, 96 and 176.4 kHz ) and 24 bits precision. It has 2 XLR/TRS combined inputs for microphone and Hi-Z input and 2 the same connectors for microphone and linear input ( for them card has phantom power +48 V switches and indicators, volume level controls and clip indicators ); 2 monitor headphones outputs with separate volume control. As well as overall device’s outputs volume control.
USB аудио интерфейс Steinberg UR44 ( задняя панель )
On back panel it has MIDI input and output, 2 main linear TRS outputs, 4 linear TRS outputs and 2 linear TRS inputs; USB port for connection to computer, power adapter input, power button and Class Compliant mode switch. For all microphone inputs audio card uses high quality Yamaha D-PRE Class-A preamplifiers; it has built in hardware VST 3 effects, their processing is handled by Yamaha SSP2 DSP. Steinberg UR44 can be switched into CC ( Class Compliant ) mode, in which it can work with Apple iPad devices version 2 or newer; this way there is ability to obtain high quality mobile recording solution.
Steinberg UR44 is powered from separate line adapter, plugged in through separate port; its mass is 1.6 kg and sizes are 252 ( width ) x 47 ( height ) x 159 ( depth ) mm, it is released only black-silver color variant with fully aluminum body. Audio interface is supplied with DAWCubase AI and VST effects and processors set Basic FX Suite. Dynamic range of device is 101 dB ( A-Weighted ), working frequencies range 20 Hz – 22 kHz ( with +0.1/-0.2 dB deviation ) and THD+N is equal to 0.003%.
For installation of DAW Cubase AI there is need in connection to Internet for downloading of additional data with 500 MB size. Steinberg UR44 supports following DSP effects : Latency-free monitoring with FX ( dspMixFx ), True Integrated Monitoring with FX in Cubase, Guitar Amp Classics, REV-X Reverb, Sweet Spot Morphing Channel Strip, Phase switch per channel and High-Pass filter. Cubase AI – is a simplified version of professional DAW of Steinberg, it is based on the same audio engine with 32-bits float precision of calculations; can work simultaneously with 32 sound tracks, 48 MIDI tracks and 16 instrumental tracks with ability to record completed compositions to disk in WAV and AIFF formats, and in MP3 after purchsing of according module. For audio and MIDI editing in program following editors are built-in : Key, Score and Drum, pitch-shift instrument AudioWarp with support of ACID files format, which allows to use large amount of already created sounds samples, and Chord Track editor. 28 VST effects and processors are built into it for work with sounds, sampling synthesizer instrument HALion Sonic SE with 180 sound; mixing console with 4 Inserts and 4 Sends for each track and equalizer. DAW Cubase AI can work in 32 and 64 bits operating systems Windows and Mac OS X.
Sound card is supplied with DAWCubase AI, with which it is closely integrated, because card and DAW has the same manufacturer. Wherein it can work with other DAWs : FL Studio, REAPER, Cackewalk Sonar and others through ASIO 2.0 and WDM or Core Audio for Windows ( XP, Vista, 7, 8, 8, 8.1 and 10 ) and Mac OS X, accordingly. Body of audio card is produced from metal, this makes it easier to use card for mobile recordings and on the open scenes and reduces electromagnetic interference on the card’s internals. Also in the package with Steinberg UR44 device itself there are : CD-ROM disk with drivers and programs, USB cable, power adapter, warranty card and user’s guide. On optical disk there are following programs : Yamaha Steinberg USB Driver, UR44 Extension ( for integration with DAW Cubase ), dspMixFx UR44 ( for integration with other DAWs ), Basic FX Suite ( Sweet Spot Morphing Channel Strip – compressor and equalizer, REV-X – reverberation, and Guitar Amp Classics – program emulator of electric guitar amplifier ) and electronic versions of user’s guides of device and programs.
All in all Steinberg UR44 is very functional sound card, which has very good characteristics and high quality hardware and costs the same amount of money or even less, than similar devices from other manufacturers; its price is around 250 USD. There is also ability to look on other audio interfaces of Steinberg, Behringer, Focusrite, Roland, ESI, M-Audio, Alesis and other companies production, which can have better analogue characteristics.
Steinberg – is a German company – creator of DAWs, VST effects, processors and instruments and also of audio interfaces, being based in Hamburg. It was established in 1984 year and now is being owned by Yamaha Corporation from 2004 year. At current moment Steinberg is one of the leading audio equipment and programs manufacturers in the world, for example, its professional DAW, instruments and hardware are used by following musicians : Hans Zimmer, Junkie XL, Justice, Kraftwerk, New Order and others.
Lets continue our study of Russian-made photo objective lens with MC APO Telezenitar-M 2.8/135. As it follows from its name, it is apochromatic ( it has corrected spherical aberrations ( geometrical image distortions ) and chromatic aberrations ( color image distortions ) for 3 or more light waves lengths ); has 135 mm fixed focal distance and 1/2.8 – 1/22 diaphragm. They were developed in KMZ plant in the beginning of 1980ties and their industrial productions started in 1983 year; also, modifications of objective lens were produced by other companies. Field of view of objective lens is 18 degrees, frame sizes are 24 × 36 mm, and minimal focusing distance is 1.3 m. There are 5 lens elements in 4 groups set in it, all of them are covered with protective and anti-reflective multicoating. MC APO Telezenitar-M 2.8/135 attaches to camera via M42×1 mount, with use of adapters and converters it can be attached to modern cameras with other bayonets formats. Objective lens sizes are : 83 x 66.5 mm, and weight is : 430 g. All in all : it is very good objective lens; it has no automatic focusing and diaphragm control and they should be set manually via control rings, because of this this lens can be advised for experienced photographers or to those, who want to dive in this area. It has small amount of lens elements and because of this it is far more superior in image quality area, than zoom-objecte lenses with simillar characteristics. Also, it is light weight ( for tele-objective lens ) and it is convenient to shoot photos from hands with it and wear camera in trips. Currently these objective lenses are rare in shops and they can be bought via private ads in conditions from “new one” to “with marks of use”.
Lets review external sound card AudioTrak DR. DAC3, which supports sound processing mode with 192 kHz sampling rate and 24 bits precision. It communicates with computer via USB port, through which it also receives power. Its digital to analogue converter ( DAC ) has 129 dB signal to noise ratio ( which is very good and provides very good sound quality, if all other sound card’s equipment supports audio processing with such high signal clearness ); it has unbalanced RCA outputs and monitor headphones outputs with separate volume level control and RCA inputs. Card supports digital optical S/PDIF input and output via TOS-LINK and RCA connectors. Sound card sizes are : 140 x 111 x 30 mm ( width x depth x height ), weight is : 400 g, and it consumes 3 – 5 W of energy, depending on workload level. There are drivers released for audio interface for Window XP, Vista, 7, 8 and newer and Mac OS X operating systems with support of ASIO 2.0 and Core Audio, accordingly; through which it can work with all modern DAWs : FL Studio, REAPER, Cackewalk Sonar and others.
AudioTrak DR. DAC3 printed circuit board
As it can be seen from AudioTrak DR. DAC3 printed circuit board ( PCB ), it has operational amplifiers ( OA ), which can be easily replaced with better ones, and film or ceramic capacitors of low-pass filters, which filter out high frequency noise after OA. Use of such capacitors is much more preferable in analogue part of sound cards, because they have much better and much more stable characteristics, than electrolytic capacitors, which can boil-up and explode after some time of use. Key outputs of card has gold-plated surface : it provides good contact, when gold-plated connectors are used ( there is need to remember, that nickel-plated connectors can not be used in such case, because otherwise areas of contact after some time of use will be covered with oxide film, that lowers contact quality ). Overall AudioTrak DR. DAC3 is very good sound card, which can be recommended for home or semi-professional small studio.
Lets review wide angle objective lens KMZ Mir-20, it was produced by KMZ plant from 1973 year to 1992 year and by other plants, now it can be bought through private ads in conditions from “new” to “with marks of use”. It has 20 mm fixed focus and field of view 96 degrees; 1/3.5 – 1/16 diaphragm; 24 × 36 mm frame size; and minimal focusing distance 0.18 m. Objective lens has 9 lens elements in 8 groups with enlightened optics or with protective and anti-reflective multi-coating, depending on objective lens modification. KMZ Mir-20 is attached to camera via M42×1 mount, using different adapters and converters it can be attached to cameras with different mounts standards. It has no automatic focusing and diaphragm control, so they should be set manually with use of control rings. Because of this it most suitable for experienced photographers, who know which settings to use in different situations. Optical filters can be attached to objective lens from back side with use of M28×0.75 mount. All in all it is very good objective lens, accounting its low lens elements amount and their high quality ( in USSR and in Russia optics production takes its roots in military area and quality of production is very high ), it is far more superior, than zoom objective lenses with similar characteristics; and taking into account its low price ( especially when it is bought through private ads ) it is very competitive with other fixed focus wide angle lenses.
M-Audio released external sound card M-Audio M-Track Plus with low power consumption, that is designed for use with laptops and other mobile devices. Card works with 48 kHz sampling rate ( which is not much for modern semi-professional audio interfaces, which able to work with 96 – 192 kHz sampling rate ) and 24 bits precision. It has large amount of hardware indicators and knobs, which allow to view sound parameters and control them directly without delays of signal sending to computer and its processing. Card has digital coaxial S/PDIF input-output and MIDI input-output; 2 XLR inputs with ability to switch on phantom power +48 V for them, 2 balanced 6.3 mm jack inputs, 2 TRS inserts and main 6.3 mm jack output. Also, there is ability to plug in monitor headphones to it with separate volume level control. Card is powered with 1 USB port, through which data is also transferred. Its body is produced from aluminum, its sizes are : 165 x 119 x 57 mm ( width x depth x height ) and its weight is 0.68 kg. M-Audio M-Track Plus is compatible with Windows XP, Vista, 7 and newer ( 32 and 64 bits ) and Mac OS X operating systems. Sound card is supplied with DAW AIR Ignite, which allows to record audio, arrange and edit tracks, apply effects, switch musical instruments for MIDI notes and export tracks for use with more advanced DAWs like FL Studio, REAPER, Cackewalk Sonar and others.
Lets review extra-wide angle objective lens ( “fish eye” ) Zenitar 2,8/16, that is produced in Russia. It was developed and now is manufactured by «Krasnogorskiy Plant of S.A. Zverev» for following bayonets : M42×1, Nikon, Pentax and Canon, it also can be used with other mounts via adapters and converters. It has 180 degrees field of view, 16 mm focal length, maximal and minimal apertures : f/2,8 – f/22 ( with 6 diaphragm blades ), frame size : 24 × 36 mm, and minimal focusing distance is 0.3 m. To obtain optimal results, there is need to use full-frame cameras, otherwise field of view will be cut near the edges. It has 11 lens elements in 7 groups, all of them are coated with multilayer protective and anti-reflective coating. Objective lens does not have automatic focusing and image stabilization; they would not work any way with adapters and converters; so, this lens is appropriate for experienced photographers, which know which settings to use for different scenes. It has great picture quality at the center and strong geometrical distortions at the edges ( they are inherent for all objective lens of this type ). Zenitar 2,8/16 has fixed focus and small amount of lens elements, so by image clarity, sharpness and lightness it is far more superior, than standard zoom objective lens of cameras. Wherein it has much smaller price, than other competing extra-wide angle objective lens.
Lets continue our reviews of semi-professional external sound cards with Infrasonic UAX2. It supports 1 microphone XLR/TRS input with +48 V phantom power for condenser microphones and 1 Hi-Z input ( both are unbalanced ), 2 balanced outputs, 1 linear input-output and 1 MIDI input-output. Card works with 24 bits precision and 96 kHz sampling rate; it is powered from 1 USB 2.0 port, through which data is transfered to computer. Microphone input has pre amplifier with level indicator and gain control. Most of recording sounds parameters can be monitored and controlled via hardware indicators and knobs. Sound card supports following interfaces : ASIO 2.0 and WDM for Windows ( XP/VISTA/Win7 and newer; 32 and 64 bits ) and Core Audio for MAC OS 10.5 and newer, with which it can work with all modern DAWs : FL Studio, REAPER, Cackewalk Sonar and others. Audio card is supplied with Native Instruments KOMPLETE ELEMENTS software, which contains 3 GB of production ready effects and sounds. Package contains : Infrasonic UAX2 sound card itself, DVD disks with drivers and sotware, USB cable and user’s guide.
