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02-07-2009, 09:26 AM   #1
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K200d with F lenses

New member here and new owner of the K200d. Bought the kit with the DA18-55 lens for $350 new from someone who got it for Christmas and didn't need it. I been using the SF1 for many years and decided to make the change to digital. Since I had the SF1, I had two lenses. One was the kit lens F 35-70 and bought the F 70-210. I just got the camera last night. After reading the manual, it said it works in general with DA, D FA and FA J lenses. I have been reading this forum and notice that there are few that have these lenses and been using it with assorted K series cameras. My questions are, is there something I should be aware in regards to using these lenses? If so, what are their limitations?

This forum is a great find.

Thanks.......... Tom

02-07-2009, 09:52 AM   #2
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Tom,

Those are both very good lenses and will work fine on your K200D. In fact the f-70-210 is a cult classic and goes for good money on eBay and at used Dealers. I wish I owned that 70-210! I do own the 35-70 and love the fact that at it's longest focal length it's actually at it's shortest physical length.

Regards,
Mike
QuoteOriginally posted by RielTime Quote
... Since I had the SF1, I had two lenses. One was the kit lens F 35-70 and bought the F 70-210... My questions are, is there something I should be aware in regards to using these lenses? If so, what are their limitations?
02-07-2009, 10:04 AM   #3
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You might occasionally see a bit of flare from the back element to the sensor. If it happens, make note of it and get on with you picture taking, it's not the end of the world.
Some of those F lenses are really nice glass.
02-07-2009, 11:10 AM   #4
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QuoteOriginally posted by X Man Quote
Tom,

Those are both very good lenses and will work fine on your K200D. In fact the f-70-210 is a cult classic and goes for good money on eBay and at used Dealers. I wish I owned that 70-210! I do own the 35-70 and love the fact that at it's longest focal length it's actually at it's shortest physical length.

Regards,
Mike
Correction: The A70-210 is the cult classic. The F version is not a constant F4 lens (F4.0-5.6) and it doesn't do macro. The A and F versions of the 35-70mm/F3.5-4.5 lens are identical. The 35-70mm is a fantastic lens, as is the A70-210.

02-07-2009, 11:29 AM   #5
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Well,

The SMC Pentax-F 70-210 fetches two to three times as much as comparable focal length Pentax legacy AF lenses, used. It's widely regarded to be sharper than modern DA lenses.

Pentax SMC-F 70-210mm f/4-5.6

Regards,
Mike
QuoteOriginally posted by maxwell1295 Quote
Correction: The A70-210 is the cult classic. The F version is not a constant F4 lens (F4.0-5.6) and it doesn't do macro.
02-07-2009, 11:47 AM   #6
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QuoteOriginally posted by maxwell1295 Quote
Correction: The A70-210 is the cult classic. The F version is not a constant F4 lens (F4.0-5.6) and it doesn't do macro. The A and F versions of the 35-70mm/F3.5-4.5 lens are identical. The 35-70mm is a fantastic lens, as is the A70-210.
The F70-210 has an odd set of specs. It has an ED element for great performance and a 9 blade aperture for nicely shaped OOF highlights. But it doesn't look fast with that f5.6 on the long end. In practice, the lens is very sharp wide open at 210mm. It outperforms a lot of older 200mm primes, like the Pentax-M 200mm f4. I've never owned the Pentax-A 70-210mm f4 so I can't compare, but the F model is certainly worth owning.

As for the OP's question, I don't think there's any significant incompatibility with F-series lenses and digital bodies. On the K20D, there's the MTF program line, where the program can choose parameters for the lens's optimum sharpness. Giving that up is no big deal, if it even applies to the K200D. The F-series colors don't really match either, but I can ignore it.
02-09-2009, 02:33 PM   #7
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While it's true the A70-210/4 is very well-regarded, the F70-210/4-5.6 also represents one of Pentax's better efforts at telezoom lenses. It is probably better than the DA 50-200/4-5.6 with the drawback of being heaver and bulkier and starting at 70mm rather than 50. Also has a fairly tank-like build. The 35-70, being very small and light, is pretty handy for addressing the lack of kit-lens reach and has a decent macro mode that can work reasonably well for flowers and the like.

There are no serious limitations for F-lenses; they function fully in all modes. Small difference is that it doesn't transmit MTF data so if you use MTF program line it might not be 100% optimized for that lens. Nothing to be concerned about in my opinion.
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