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06-17-2011, 05:10 PM   #1
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645d lenses

can da or fa lenses or other A, etc lenses be used with a 645 d? or would i have to buy other lenses to go to the medium format digital camera?

06-17-2011, 05:47 PM   #2
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You can go the other way. Pentax 645 lenses can be used on a DSLR like the K-X, with an adapter, but K mount lenses will not work on the 645. Look on ebay or here for used 645 lenses.
06-17-2011, 05:49 PM   #3
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No, DA and FA lenses are not suitable for the 645D. FA lenses *could* be (badly) used, but only for closeups, with severe vignetting. Yes, you will need to buy appropriate lenses. Those made for the Pentax 645 film cameras will be fine. But forget about lenses made for 35mm and APS-C cameras.
06-17-2011, 05:54 PM   #4
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ok, thanks, is it worth the cost to go from the k-5 to the 645d ? is the image quality much better?

06-17-2011, 06:12 PM   #5
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No disrespect intended at all, but if you can afford a $10,000 camera then you don't need to ask.

Or maybe it's if you need to ask you can't afford it. I don't know I'm confused.

Seriously I am not sure they are even comparable. They are for two different roles. If you are into big landscape then yes certainly, but to take pictures of the kids? I think it might get a little heavy to carry around all day at the park. The body alone weighs over 3 pounds. It has a 40 megapixel sensor!
06-17-2011, 06:18 PM   #6
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ok, pretend i didn't ask then. ten thousand is a little too out of my ballpark -- then lenses ? ok, sorry........
06-17-2011, 07:14 PM   #7
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No worries. There is another thread here somewhere about renting a 645D. When I saw the thread I thought, cool, I would love to shoot one of those. I know I can't afford to buy one but hey maybe I'll take it out for the day.

Unfortunately it seems the going price for rental is $500 per day plus the lenses which go for about $200 per day. So, I won't be doing that.

Last edited by jatrax; 06-18-2011 at 12:40 PM.
06-17-2011, 09:13 PM   #8
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There is a much cheaper way to do MF: film. Some pro MF systems are selling for a pittance now, mainly those with no digital tie-ins. The nice thing about film is, that when you lust for higher resolution, you buy a new roll of film rather than a new camera body. Any cheap 6x9cm folder will totally SMOKE any digital camera. Go chemical!

06-18-2011, 08:03 AM   #9
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what do you mean by 6x9cm folder? ( sorry if i sound like a real dummy )
06-18-2011, 09:13 AM   #10
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A folder is a folding camera, one of those old film machines with a bellows. I have good working folders in 135 (35mm film cartridge) and 6x6 and 6x9 (120/220/620 roll film) formats; 645 folders are still priced a bit high for my comfort, but I'll get one eventually. No batteries are needed except maybe for a handheld light meter.

A 6x9 frame has about 5.5x the area of a 135 frame. That's mucho resolution! It's like the vast difference between 2.1mpx and 12mpx digicams. A 6x9cm (2.25 x 3.25 inch) frame scanned at 2400 dpi gives a 40mpx image, for rather less cost than a 645D+lenses. Look for old Zeiss and Voigtlander folders if you want bragging rights.
06-18-2011, 05:51 PM   #11
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thanks for explaining what the folder camera is, can one still buy film for these cameras?
06-18-2011, 06:31 PM   #12
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If you're looking for a medium format film camera that is easy to obtain film for then you want a body that takes 120 roll film. Some bodies will take both 120 and 220, while others take only 220 film, or other roll film formats that have been discontinued for years.

A Pentax 645 film body with the 75mm standard lens could probably be had for $300 or so.

In the US there are some mail order developing and scanning services available if you don't have a local lab that can do it.
06-18-2011, 09:09 PM   #13
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As Steinback said, film is still available. Three related MF film types exist(ed): 120, 220, and 620. All use exactly the same 70mm-wide film, but package it differently.

* 120 is the oldest standard. It is a film strip backed with paper and is very easy to handle. The paper protects the film, and has frame numbers printed on it so users can peep through a window in the camera back to ensure that they're on the right frame. 120 can be used in any MF film camera -- with limitations (see 620 below).

* 220 is much newer. It consists of a film strip only, without paper. 220 should be used only in more modern MF cameras with internal frame counters and interchangeable film holders, not in old folders -- light from the peep hole would ruin the film. Of course, you can always tape over the peep hole and guesstimate the frame, eh?

* 620 was Kodak's proprietary update of 120. It is exactly the same as 120, but with different size spools. Most 620 cameras (and MANY MANY exist!) cannot be fitted with 120 spools. This leads to a cottage industry of respooling. Bother. Some few cheap box cameras (like my US$3 Herbert George Official Girl Scout 620) can take both 120 and 620 spools and are thus perfect tools for respooling. Commercially respooled 620 film is available, at horrible prices. Better to DIY, eh?

Some such 120 and 620 MF cameras have film compartments wide enough for 135 (35mm) cartridges to fit. By using little spool extensions, they can shoot 135 film! But the frames will be much larger than the standard 36x24mm produced in a 135 camera. A 6x9cm folder will produce frames that are 90x35mm. The wide and tall frames, with sprocket holes included in the pictures, make what are called sprocket-hole panoramas. Light diffracts and interacts with the sprocket holes in odd ways that can't quite be reproduced with digital editing. Great fun!

For serious MF work, a pro Pentax or Bronica or Mamiya or Fujica or Hasselblad system is the way to go. (Beware the Kiev-brand Hassy clones; the lenses may be good, but the camera bodies usually suck.) For MF fun, a Holga or an old folder or box camera is cheap and easy.
06-19-2011, 02:32 PM   #14
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thanks for all the information, i may look for one of these, then.
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