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01-25-2011, 03:36 PM   #1
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Pentax 645 to Nikon Adapter

Hi Guys,

The lenses I have purchased for my 645 D have started arriving. I won't have the 645D for some time and I was wondering if anyone knew where I could get a Pentax 645 to Nikon adapter? I'm having trouble finding a company that will ship to Australia.
I was keen on trying this A*300 I just received on my Nikon D3x.

Any help would be appreciated.

Thanks, Chris

BTW anyone out there tried this lens on a Nikon?

01-25-2011, 04:01 PM   #2
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Check ebay, there are a lot of knock off one.

Pentax 645 P645 lens to Nikon D3 D300 D700 D90 adapter - eBay (item 220617520395 end time Jan-31-11 21:13:50 PST)
01-27-2011, 01:44 AM   #3
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Thanks for that, I just bought one.
Does anyone out there know what the focal lengh of a SMC A* 300MM F4 used on a Nikon D3x will be?
01-27-2011, 02:58 AM   #4
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Focal length will be the same (300mm), but field of view will be approximately equal to the field of view of 235mm focal length lens on Nikon FX format (This is not correct answer ).

Edit: I was in rush and wrote not correct answer On 645 field of view will be as with 235mm lens on Nikon FF, but on your Nikon FF camera this 300mm lens will be with the same field of view as your Nikon 300mm lens, because this is 300mm lens. 300mm is actual focal length and it doesn't change regarding on what camera you put this lens.

Last edited by Roberts; 01-27-2011 at 10:30 AM.
01-27-2011, 01:15 PM   #5
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