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01-11-2008, 05:01 AM   #1
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Dubesor's Avatar

Join Date: Dec 2007
Location: Vancouver, British Columbia
Posts: 333
67ii > K100d ??

I can get the following set of lenses from Pentax 67ii locally:

Pentax 67 55-100mm, 1:4.5
Pentax 67 macro 135mm, 1:4
Pentax 67 macro 100mm, 1:4
Pentax 67 wide angle 45mm, 1:4
Pentax life-size converter 67
Pentax 67 tubes numbers 1,2,3.

What do you think is reasonable to pay for this set and where can I find the converter for these to fit on my K100D Super?

Dubesor
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01-11-2008, 06:51 AM   #2
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Lowell Goudge's Avatar

Join Date: Jan 2007
Location: Toronto
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I would be careful if you are going to pay too much for these lenses.

This is not because they are poor quality, but for use on a DSLR you have to use the adaptor which I believe, leaves you with only stopped down metering,

You may wind up paying a lot of money for a lens that covers a huge image circle. A 6x7 covers an image circle of 92mm as opposed to your DSLR sensor of 29 mm.

Additionally, these lenses all appear relitively slow.

there are tons of K mount 100 F4 macros available for about $100, SMC 135 F2.5 for about $125, a 100mmF2.8 will cost you about the same, and you can get older AF kit lenses in the 35-100mm range for about $20.

All of these are going to give you more functionality than the much bigger and heavier 6x7 lenses,

So unless you get them for a real steal (less than half of above), i see no purpose in taking them.

In the latest popular photography magazine, they actually did a comparison of full frame lenses and image quality on ASP-C sensors, and found no real measurable improvement in image quality when it came to using the "sweet spot' in the middle of the lens
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