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08-14-2010, 06:07 AM   #1
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What do all the different lens classifications denote?

I'm thinking of picking up a 50mm lens for my k10d and possibly a macro-lens if I can make my money travel that far.

I jumped over to the lens review database for a bit research and then ran-away scared

Would someone be kind enough to explain the difference between all the classifications/types e.g. DA, FA, D FA, FA J, A, F, M etc.

I'm going to hazard a guess that a D prefix means digital....

Thnks
Techno~

08-14-2010, 07:41 AM   #2
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Start here:

Summary of the K-Mount Evolution, Names, and Features

The whole site has a ton of Pentax information on it.
08-14-2010, 08:16 AM   #3
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If you flip through some additional pages you will come to this...
08-14-2010, 09:02 AM   #4
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Here is the time-line, oldest to newest:
  1. M42 Takumar screw mount
  2. Pentax-K (K-mount labeled SMC Pentax)
  3. Pentax-M
  4. Takumar Bayonet
  5. Pentax-AF (single model, early AF lens)
  6. Pentax-A
  7. Takumar-A Bayonet
  8. Pentax-F (This and all following are AF)
  9. Pentax-FA
  10. Pentax-FA J
  11. Pentax-DA (Reduced image circle for APS-C digital)
  12. Pentax-D FA (Digital optimized with FF image circle)
"*" and "Limited" are premium quality lenses within the range. Macro indicates a lens that focuses to 1:1 or 1:2 magnification (depending on model).


Steve

08-14-2010, 09:03 AM   #5
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Sorry for the shameless self-promotion, but here's the clearest guide there is if you just want to get straight to the facts you care about:

Pentax K-Mount Lenses Explained

Adam
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08-14-2010, 09:10 AM   #6
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Thanks everyone.

Adam - that summary is perfect, clears everything up for me.
08-14-2010, 09:12 AM   #7
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QuoteOriginally posted by Adam Quote
Sorry for the shameless self-promotion, but here's the clearest guide there is if you just want to get straight to the facts you care about:

Pentax K-Mount Lenses Explained
Pat yourselves on the back!

But I note the lack of a heading for WR lenses.

Just a suggestion, for completeness.
08-14-2010, 09:18 AM   #8
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QuoteOriginally posted by Adam Quote
Sorry for the shameless self-promotion, but here's the clearest guide there is if you just want to get straight to the facts you care about:

Pentax K-Mount Lenses Explained
I keep forgetting that those resources are part of the site. Planning on adding the Pentax-AF any time soon?


Steve

08-14-2010, 09:44 AM   #9
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QuoteOriginally posted by stevebrot Quote
Here is the time-line, oldest to newest:
  1. M42 Takumar screw mount
  2. Pentax-K (K-mount labeled SMC Pentax)
  3. Pentax-M
  4. Takumar Bayonet
  5. Pentax-AF (single model, early AF lens)
  6. Pentax-A
  7. Takumar-A Bayonet
  8. Pentax-F (This and all following are AF)
  9. Pentax-FA
  10. Pentax-FA J
  11. Pentax-DA (Reduced image circle for APS-C digital)
  12. Pentax-D FA (Digital optimized with FF image circle)
"*" and "Limited" are premium quality lenses within the range. Macro indicates a lens that focuses to 1:1 or 1:2 magnification (depending on model).


Steve
You forgot Takumar-F Bayonet.
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