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02-05-2013, 07:47 AM   #1
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Fotodiox Pentax 67 Lens to P645 Camera adapter

I am right now a happy camper. I have two Pentax 6x7 cameras and six 67/6x7 lenses. I recently acquired the Pentax 645N plus a couple of lenses, but it would have been nice to be able to use the 6x7 lenses on the 645, too. I know that is possible with the Pentax 67 Lens to P645 Camera adapter, but that adapter is either quite hard to find and/or quite expensive. There is one on eBay right now at £199, and Ffordes Photographic has a new, original adapter priced at £419.99. Well, I wouldn’t like to pay more for a mechanical adapter than I have paid for any of my lenses.

However, searching the Internet, I came across the Fotodiox 67 Lens to P645 Camera adapter (Pentax 6x7 (P67) Lens to Pentax 6x4.5 (P645) Mount - Fotodiox Pro Lens Mount Adapter) priced at $169.95. That would be more acceptable, but with postage and import fees to Denmark it is still quite expensive.

Then on Amazon I stumbled upon the same adapter priced at only $33.67. That price would swell to $61.55 because of shipping and import fees before it would reach me in Denmark, but now we’re talking. I promptly hit the Add to Cart button. (When I check Amazon right now, the price has for some reason risen to $70.36, but that is still much cheaper than the original Pentax adapter.)

I have just received the adapter, and the quality looks good to me. As far as I can read and see, the functionality is the same as with the original Pentax adapter (stop-down metering and automatic). There are to levers – one to stop down the lens when pressing the shutter, and one to relay the aperture setting back to the camera. To quote from the Fotodiox homepage: “Although the lens will fit physically, auto-focusing and most other functions will not operate while using this adapter, however the adapter does allow the automatic diaphragming to work as intended. You can shoot with manual mode or aperture priority mode. Infinity focusing is guaranteed.”

Now I can use my 6x7 45mm lens, which is wider than any 645 lens in my bag, plus for example my 6x7 90mm F2.8, my 6x7 105mm F2.4 and 6x7 165mm F2.8 on the 645N. Nice.

I haven’t processed any films with images taken using this adapter, but I cannot see why it shouldn’t work as intended. Here are some images of the adapter:













02-05-2013, 02:47 PM   #2
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I have a couple Fotodiox adapters which I use on my 645D. With some of the 67 lenses the shiny inside surfaces of the adapter produced very noticeable flare in the center of the image. I solved this by spray painting the inside of the adapter with flat black paint. Otherwise, I agree that they are well made.
02-05-2013, 03:16 PM   #3
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I was a bit surprised to see the flanges on this adapter for outer bay lenses. Nice!
02-06-2013, 12:08 AM   #4
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QuoteOriginally posted by klewish Quote
I have a couple Fotodiox adapters which I use on my 645D. With some of the 67 lenses the shiny inside surfaces of the adapter produced very noticeable flare in the center of the image. I solved this by spray painting the inside of the adapter with flat black paint. Otherwise, I agree that they are well made.
Thanks for the tip. I think I will do the same.

03-24-2013, 10:15 PM   #5
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QuoteOriginally posted by LaHo Quote
Thanks for the tip. I think I will do the same.
you would do better with the pentax 67 to 645 adapter. keh sells them for about $125.00.
04-21-2013, 01:19 AM   #6
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Hi,
I just came back from a ten days visit to India. I have been using a Pentax 645 and 645N mainly for animal photography. I used a Pentax 6x7 4/300mm lens on both Pentax 645 and 645N with the fotodiox adapter described in this Thread. It worked without any problems. According to the recommandations in this Thread, I painted the inner side (without the moving parts, of course) with matte black colour before taking the first photos in order to avoid reflections within the Adapter. The photos came out very well and whatever does not please me on some is certainly not the fault of the adapter.
So I think saving money and prefering the fotodiox adapter over the original Pentax adapter is a good choice.
04-22-2013, 03:00 AM   #7
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QuoteOriginally posted by Fritzenpapa Quote
Hi,
....
So I think saving money and prefering the fotodiox adapter over the original Pentax adapter is a good choice.
Thank you for your feedback.
I have now developed a couple of films where the Fotodiox adapter has been used, and I see no adverse effects. In other words, it works flawlessly, and here in Europe at least it is very much cheaper than the original item.
03-12-2015, 12:32 AM   #8
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QuoteOriginally posted by klewish Quote
I have a couple Fotodiox adapters which I use on my 645D. With some of the 67 lenses the shiny inside surfaces of the adapter produced very noticeable flare in the center of the image. I solved this by spray painting the inside of the adapter with flat black paint. Otherwise, I agree that they are well made.
i found this to be a legitimate issue with my 67 M*300 on the 645D, so i simply dipped a small art brush in some flat black spray paint(sprayed into the cap), and painted a light coat on the shiny anodized black surfaces of the adapter and the problem went away 100%. it took me 2 years to get around to doing something that took 15 minutes. thanks for the tip!


Last edited by mikeSF; 03-22-2015 at 08:09 PM.
03-12-2015, 08:41 AM   #9
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I have two of those adapters and have never noticed any flare issues. That said, your comments Mike are pretty much guilting me into doing it!
03-12-2015, 10:50 AM   #10
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QuoteOriginally posted by GarethC7 Quote
I have two of those adapters and have never noticed any flare issues. That said, your comments Mike are pretty much guilting me into doing it!
here it is at its worst, my last couple of outings with the adapter show zero occurrence of the problem.

Last edited by mikeSF; 04-13-2016 at 08:33 AM.
03-20-2015, 09:32 PM   #11
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fotodioxx adapter

Just arrived from amazon the fotodixx adapter.

Mounting 67 104 f2.4. shot wide open





models in computer fair 2015, Singapore.

marcus
03-21-2015, 04:40 AM   #12
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I got the Fotodiox one, works perfectly, is black inside and I paid 52 pounds for it on Amazon.uk - now sells for 62. If I recall correctly, I took the photo below with it on my 645D:

03-21-2015, 05:40 AM   #13
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Thanks for that great picture Vieri.

Best wishes, Udo
03-21-2015, 10:26 PM   #14
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you should be satisfied with the results. I got the pentax brand and , no problems. with the 67 lenses on 645 film you may have trouble on the wide angle side. your experiences will tell.
03-22-2015, 01:52 AM   #15
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QuoteOriginally posted by desertdiver Quote
Thanks for that great picture Vieri.

Best wishes, Udo
Thank you Udo, glad you enjoyed it

Best,

Vieri
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