The smc FA 645 200mm f/4 IF Lens from Pentax is a medium-format, manual and autofocusing telephoto lens with a 35mm-equivalent focal length of 157mm. It provides a soft out-of-focus (bokeh) effect. It features two extra-low dispersion (ED) glass elements to correct for chromatic aberration, and a ghostless coating to effectively eliminate reflections on the inner surface of the lens, in order to provide sharp images with high contrast. The inner focusing system improves focusing speed and minimizes lens extension, allowing for a closer minimum focus distance.

Pentax 645 Mount    35mm Equivalent Focal Length: 157mm    Aperture Range: f/4-32    Internal Focusing    2 Extra-Low Dispersion Glass Elements    Ghostless Coating Eliminates Reflections

Medium-format, manual and autofocusing telephoto lens with a 35mm-equivalent focal length of 157mm

Maximum aperture of f/4 can be stopped down to f/32 via the aperture ring in manual mode. Alternatively, full automatic diaphragm control is available

Provides a soft out-of-focus (bokeh) effect

Features two extra-low dispersion (ED) glass elements to correct for chromatic aberration, and a ghostless coating to effectively eliminate reflections on the inner surface of the lens, in order to provide sharp images with high contrast

Internal focusing system improves focusing speed and minimizes lens extension, allowing for a closer minimum focus distance

Supplied lens hood blocks stray light in order to prevent lens flare. Also offers some additional protection against impact for the front element, should you get a bit too close to your subject

Related Questions and Answers

Q: 1. Will this lens work on the Pentax K-3 III?

A: Not directly, Pentax smc FA 645 400mm f/5.6 ED IF Lens has a Pentax 645 medium format native mount.Pentax K-3 Mark III DSLR Camera has a K-mount. You can use a lens adapter to connect Pentax 645 lenses to Pentax K-mount cameras. All the current adapters are strictly under full manual operations.

Q: 2. is this lens weather proof?

A: This lens is not weather proof.

Q: 3. If used on another camera via an adapter, will it still have full manual control?

A: Yes. It has an aperture ring.

Q: 4. The lens is front-focusing and I can not correct it with the 'Apply One' setting in the fine adjustment menu.How do I find out if this lens is in the 645z database or not ? If it is only adjustable with the 'Apply All' setting It would be not so convenient to remember to zero the setting every time i change lenses. Any info appreciated. Thanks.

A: Please email us at photo@a href= http://bhphoto.com target= _blank bhphoto.com/a for assistance with your inquiry.

Q: 5. can it be used with the 645Z body?

A: Yes, this lens will work on the 645z body

Q: 6. Hi there, I am new to Medium Format Cameras, does this lens have Vibration Control?

A: Shake reduction built into the lens is already old and redundant technology. The newest technology is Pentax's shake reduction done on the sensor instead of the lens. Already rolled out on models like the K1 and KP. Let's hope they include it into the next version of 645.

Q: 7. Does this lens offer total manual control?

A: Yes this lens offers manual control.

Q: 8. please can someone tell me how to set this lens sot auto focus?

A: You have to pull in the furthest ring for manual or automatic focusing

Q: 9. Can you please tell me if the fine focus adjustment apply one setting works for this lens, without having to use the 'apply all' setting? it would be not so convenient to have to remember to zero the setting every time I change the lens. Thank you.

A: You will want to contact the manufacturer directly for assistance with this inquiry.

Q: 10. Can the tripod mount ring be removed?

A: No, the tripod mount ring on the Pentax smc FA 645 300mm f/4 ED (IF) Lens cannot be removed.