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Pentax smc FA 250-600 mm f/5.6 DE (IF)
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Specifications:
| Manufacturer | Pentax |
|---|---|
| Model | smc FA 250-600 mm f/5.6 DE (IF) |
| Lens style | Telephoto zoom |
| Focal length | 250 - 600 mm |
| Maximum aperture | f/5.6 |
| Angle of view | 9.9 - 4.1 o |
| Closest focusing distance | 3.5 m |
| Maximum magnification | 1:5 |
| Minimum aperture | 32 |
| Number of diaphragm blades | 0 |
| Auto focus type | AF |
| Lens Construction | 18 elements / 16 groups |
| Filter diameter | 43 mm |
| Macro | No |
| Available mounts | Pentax K |
| Dimensions | 135 x 442 mm |
| Weight | 5050 g |
| Additional information |
Owners reviews (1)
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Overall
Owner since: more than 10 years
Price: 2900
User profile: Semipro
Cons: Heavy. Requires gimbal head and tripod for best results.
Pros: Optically sharp throughout the FL range, even wide open at F/5.6
Summary: Brilliant, even on digital: I highly doubt I will ever part with this lens. The FA* 250-600/5.6 is definitely better than the Sigma 500/4.5 EX DG APO lens I used. This heavier lens - like any larger super telephoto - requires top shelf tripod and gimbal head to bring out the best images. I have a Gitzo GT3541XLS, Wimberley WH-200 gimbal head and Wimberley P-50 lens plate - three screws hold the almost 7\" long plate to the tripod collar foot. I\'ve not really tried it on a monopod yet, but I now have a Wimberley C-10 QR clamp to mount on my monopod so I am looking forward to seeing it in action. It\'s a fantastic lens. This is by far the better lens of choice and the MFD kicks the competition around by a good margin. Most 600/4 lenses start at 15.5 feet and go up - that\'s the lowest in class of any 600mm - next 600mm is 15 feet - great for shooting in a blind/hide. Only Nikon\'s newest 600/4 is on par with the FA* 600/4 in that aspect. Having a max. aperture of F/5.6 is but a small trade off for it\'s flexibility. When the light is getting that low, it\'s becoming a compromise anyway. All wrapped up into a unique FL zoom. What\'s astounding is that the FA* 250-600/5.6 is unbelievably sharp even wide open throughout the entire FL range. The proof is in the images I have taken with it. If it\'s a tad soft at 600mm wide open, then that is an issue with the photographer\'s technique, nothing more. This is another example of the pinnacle of Pentax optical engineering mastery.