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Details about  SMC Pentax-M 50mm f/1.7 prime standard lens K-Mount PK

SMC Pentax-M 50mm f/1.7 prime standard lens K-Mount PK See original listing
Item Ended
Item condition:
24 Aug, 2012 09:32:18 BST
£3.99 Standard Delivery | See details
Item location:
Knaresborough, North Yorkshire, United Kingdom


eBay item number:
Seller assumes all responsibility for this listing.

Item specifics

Used: An item that has been previously used. The item may have some signs of cosmetic wear, but is fully ... Read moreabout the condition


Focus Type:




Max. Aperture:


Camera/Camcorder Fitting:

Pentax K

Bundled Items:

Fronts lens cap, Front Lens Cap, Rear Lens Cap

Focal Length:


SMC Pentax-M 50mm f/1.7 prime standard lens K-Mount PK

Supplied with Vivitar Skylight (1A) filter, push-on rear lens cap and clip-on front lens cap.

This lens is used but is fully working and in very good optical and cosmetic condition.  There are only a few light surface marks on the body.   Please see images above for confirmation of condition. 

In detail:

- Front and rear lens elements are clear with no scratches or blemishes

- No fungus or hazing

- There are a few tiny specks of internal dust as to be expected with a lens of this age but test images confirm that these do not effect image quality

- The aperture diaphragm operates smoothly and there is no oil on the blades

- Positive and smoothly operating focus ring

- Aperture ring clicks positively at each full and half f-stop

The lens has been tested on a Pentax K20D to ensure that it functions correctly and the test images are of very high quality; very sharp and contrasty.

General Information

The SMC Pentax-M 50mm has a fast f/1.7 maximum aperture and is acknowledged by enthusiasts as one of the great prime lenses because of its superb performance, build quality and handling.  This is a manual focus Pentax K-mount (bayonet) lens.   The precision optical construction and the Pentax SMC multi-coating ensure excellent resolution, sharpness, contrast and control of flare under all conditions. The images taken with this lens are typically of noticeable higher quality when compared to those taken with the majority of consumer / prosumer zoom lenses.

The lens is compatible with all Pentax K-, KA-, and KAF-mount 35mm SLRs and all Pentax and Samsung GX Series digital SLRs.   Although the lens is manual focus, on autofocus Pentax SLRs the focus confirmation function can be used.  For further details of compatible SLR bodies see the compatibility section below.

On Pentax digital SLRs this lens affords an angle-of-view approximately equivalent to a focal length of 75mm, however the maximum aperture remains at f/1.7.  The fast maximum aperture allows shooting in low light conditions and provides a narrow depth of field to isolate subjects from their background and, combined with the short telephoto magnification, this means it is ideally suited to photographers that want a very high quality portrait lens for the digital format.


Weight: 185g, Length: 3.1cm, Filter Diameter: 49mm, Min. Focus: 45cm, Max. Magnification: 0.15x, Diagonal FOV: 47 degrees, Horizontal FOV: 40 degrees, Diagonal FOV on Digitial 31 degrees: Horizontal FOV on Digital: 27 degrees, Min. Aperture: f/22. Optical Construction: 6 elements, 5 groups, 6 blades


This lens is designed to work with Pentax K-mount cameras such as K1000, KM, K2, KX, MG, MV, MV-1, MX, LX, ME, ME Super, ME-F.

It is also compatible with all PENTAX 'A', 'P', 'SF', 'Z/PZ', 'MZ' and *ist series camera bodies (e.g. PROGRAM A (Program Plus), SUPER A (Super Program), A3, A3000, P3, P30, P5, P50, SFX, SFXn, SF7, PZ-1, PZ-10, PZ-20, MZ-S, MZ-3, MZ-5, MZ-6, MZ-30, MZ-50, *ist D, *ist DS/DS2, *ist DL/DL2, K10D, K20D, K100D, K110D, K200D, K-m, K-7, K-x, K-r, K-5, K-30 and SAMSUNG GX Series).

I have included a number of detailed pictures so you can assess the condition yourself.

Shipping Costs

Package weight is approximately 375g

UK: £3.99 (Royal Mail First Class Recorded);

Europe: £9.99 (Royal Mail International Signed For)

Terms & Conditions (please read before bidding)

I want to maintain my 100% feedback rating so I endeavour to describe items accurately and in detail. All images are of the actual item for sale, to confirm its cosmetic condition, but if you have any questions then please contact me.

Please pay within 4 days of winning the auction.

Thank you for looking!

Questions and answers about this item

No questions or answers have been posted about this item.


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