Pentax smc FA 645 120mm f/4 Macro Lens

Pentax smc FA 645 120mm f/4 Macro Lens

Pentax smc FA 645 120mm f/4 Macro Lens

B&H # PE12040MC MFR # 26735
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Product Highlights

  • Pentax 645 Mount
  • Aperture Range: f/4-32
  • 35mm Equivalent Focal Length: 96mm
  • Super Multi Coating
  • Floating Mechanism
  • Extra-Low Dispersion (ED) Glass
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Price: $1,596.95

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Pentax 26735 overview

  • 1Description

The smc FA 645 120mm f/4 Macro Lens from Pentax is a medium format, manual and autofocusing, short telephoto/portrait prime lens that provides a 35mm equivalent focal length of 96mm when used on a Pentax 645D or 77mm on a film 645 camera. The super multi coating (SMC) significantly increases the amount of light transmission. The lens offers a 1:1 magnification ratio and focuses as close as 15.4". The focus limiter can be used to set the focusing distance range for increasing the speed of the autofocus. The maximum aperture of f/4 can be stopped down as far as f/32. The lens was developed using computer-assisted optical design technology for a high degree of precision. It uses a floating mechanism and an independently-moving aperture mechanism. It also features extra-low dispersion (ED) glass to correct for chromatic aberrations, helping to deliver sharp imagery with high contrast and clarity throughout the focusing range.

Medium format, autofocusing, short telephoto/portrait prime lens that provides a 35mm equivalent focal length of 96mm when used on a Pentax 645D or 77mm on a film 645 camera
Treated with super multi coating (SMC) to significantly increase the amount of light transmission
Magnification ratio of 1:1 (1x magnification)
Minimum focus distance of 15.4". The focus limiter can be used to set the focusing distance range for increasing the speed of the autofocus
Maximum aperture of f/4 can be stopped down as far as f/32
Uses a floating mechanism and an independently-moving aperture mechanism
Features extra-low dispersion (ED) glass to correct for chromatic aberrations, helping to deliver sharp imagery with high contrast and clarity throughout the focusing range
Developed using computer-assisted optical design technology for a high degree of precision
UPC: 027075046085
In the Box
Pentax smc FA 645 120mm f/4 Macro Lens
  • Front and Rear Caps
  • Lens Hood
  • Soft Lens Case
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Pentax 26735 specs

    Focal Length 120 mm
    Aperture Maximum: f/4
    Minimum: f/32
    Camera Mount Pentax 645
    Angle of View @ Infinity 32.5°
    Minimum Focus Distance 15.35" / 39 cm
    Area of Coverage 415 x 560 mm
    Diaphragm Blades 8
    Optical Design 9 Elements in 7 Groups
    Magnification 1x
    Maximum Reproduction Ratio 1:1
    Autofocus Yes
    Filter Thread 67 mm
    Dimensions Approx. 4.33 x 3.25" (110 x 82.5 mm)
    Weight 1.54 lb / .7 kg
    Packaging Info
    Package Weight 2.4 lb
    Box Dimensions (LxWxH) 6.299 x 5.276 x 5.039"

    Pentax 26735 reviews

    smc FA 645 120mm f/4 Macro Lens is rated 5.0 out of 5 by 4.
    Rated 5 out of 5 by from You pay less and get equal 120mm macro is a true classic. Everybody does and the quality overall is pretty much the same (pentax, fuji, zeiss etc). What makes this one special? Well just look at the price...This focal lenght is a very usefull one, kind of must have. Good for portraits, landscape, bugs, nature and macros. The quality is here even wide open you'll get sharp and crispy images, even at the farthest corner (as usual with others 120 macro).I can complain about the build quality, is not as good as hassel and leica, specially the aperture ring!
    Date published: 2014-09-04
    Rated 5 out of 5 by from Superb Lens! This lens is superb! It is being used on a Pentax 645D and I have to admit that it was my second choice only. Already having the older A120 without autofocus I was originally looking for the new 90mm lens. But being equal to a 72mm lens in FF terms it wasn’t exactly too attracting and the fact of not having an aperture ring was another reason to not buy this lens. Those older lenses with an aperture ring can also be used via adapter on my Nikon bodies. So why did I buy this focal length again? Honestly for two reasons: �1) AF -if perfectly calibrated- increases the keeper rate for medium and far distances and �2) there is a correction module available in the DxO OpticsPro and PhotoLab software for this FA lens which applies corrections if needed. The lens renders sharply from center to the corners already wide open (assuming a flat object). With staggered (3D) objects a very slight tint of chromatic aberration appears in the out of focus regions. Closing down the aperture to f/5.6 improves sharpness a bit while chromatic aberrations are gone. Compared to my older A120 lens the new version performs much better here, i.e. wide open or close to it. The difference is getting less at f/8 and from f/11 on invisible. Although I have to say there is a bit higher micro contrast with the FA lens. F/16 is still very usable on both lenses while diffraction kicks in from f/22 and smaller. The new lens renders more neutral compared to the older which shows a warmer tint at the same camera’s WB settings. The auto focus works precisely without the need for AF fine tuning. Being an auto focus lens the focus ring doesn’t work that smoothly in manual focus mode like its manual predecessor. But this is true for many other lenses from other brands as well. The build quality is good, although I’d consider the predecessor’s build quality slightly better. And yes it cannot compete with a HC120 in this field, but has the advantage of being a lot cheaper and lighter by around 500 grams which pays off when travelling. The huge lens hood, which is designed for ‘645 film’, isn’t to my liking and stays in the box. Since I use that lens on the smaller crop sensor (33mm x44mm) I replaced this hood by a 67mm screw-in type made by Heliopan which works pretty well. The lens caps work well and the added pouch is to my liking, much better than those delivered with HC(D) lenses. At the time of writing I am very happy with my purchase and would recommend it to a friend.
    Date published: 2018-01-09
    Rated 5 out of 5 by from Sharp I havent got time yet to test it so much, bought it two weeks ago, but it is a fanstastic lens, very sharp. One thing that surprised me was the way to change between automatic and manual focus. It was a new thing for me that you changed it on the top of the lens, but now when I know, it is absolutely no problem. I can really recommend it, because of the macroeffects.
    Date published: 2017-06-29
    Rated 5 out of 5 by from It is what they says it is... I don't like the way the auto/manual focus ring works. It is too easy to unintentionally slip from one to the other.
    Date published: 2015-02-19
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