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Forum: Pentax Medium Format 07-20-2015, 09:19 AM  
Sticky: Block diagrams of every 645 A series lens
Posted By Fat Albert
Replies: 13
Views: 23,943
I'm going to try the 67 lenses next.

You all have no idea what I went through to find these. Hours and hours of searching every possible word combination I could think of. Searching links. Searching images. If I see one more picture of a stock 645 lens, I'm going to scream. After a while, I began to wonder whether these actually existed on the world wide web.

Interestingly enough, Ken Rockwell, of all people, has some of the most comprehensive Pentax 645 lens info out of anybody out there--but only for the lenses he reviewed. I must say, his approach to Pentax is almost schizophrenic. He'll knock the K-3 packaging, and then rave about the focusing smoothness of the 645 lenses. Like, full-on gush. Very interesting.
Forum: Pentax Medium Format 07-20-2015, 05:45 AM  
Sticky: Block diagrams of every 645 A series lens
Posted By Fat Albert
Replies: 13
Views: 23,943
(I didn't know if I should post this in SLR lens discussion or not)

I have been searching high and low for these, and I was beginning to think that they didn't exist outside of a filing cabinet in a Tokyo patent office. But somehow I stumbled upon them, and here they are without further ado!


SMC Pentax 645 A Teleconverter 2x


SMC Pentax 645 A Teleconverter 1.4x


SMC Pentax 645 A 35 f/3.5


SMC Pentax 645 A 45-85 f/4.5


SMC Pentax 645 A 45 f/2.8


SMC Pentax 645 A 55 f/2.8


SMC Pentax 645 A 75 f/2.8


SMC Pentax 645 A 75 f/2.8 Leaf Shutter


SMC Pentax 645 A 80-160 f/4.5


SMC Pentax 645 A 120 f/4 Macro


SMC Pentax 645 A 135 f/4 Leaf Shutter


SMC Pentax 645 A 150 f/3.5


SMC Pentax 645 A 200 f/4 [IF]


SMC Pentax 645 A* 300mm f/4 ED [IF]


SMC Pentax 645 A* 600mm f/5.6 ED [IF]
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