16-45
Posted 28/05/2010 - 23:01
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Why can't we agree, once and for all, that a 16 mm lens (or any other focal length for that matter) remains a 16mm lens no matter which camera it is used on :
Best regards
Terry
K20D, Optio I10, DA 18-55 1:3.5-5.6 AL II, A 1:1.7/50, D FA 1:2.8/100 Macro, Sigma 70-300 1:4-5.6 APO DG Macro, Pentax AF 360FGZ
Terry
K20D, Optio I10, DA 18-55 1:3.5-5.6 AL II, A 1:1.7/50, D FA 1:2.8/100 Macro, Sigma 70-300 1:4-5.6 APO DG Macro, Pentax AF 360FGZ
Posted 28/05/2010 - 23:32
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Because it is pretty meaningless. We don't choose a lens because of its focal length, which is a very abstract concept. We choose it because of its angle of view.
G
G
Keywords: Charming, polite, and generally agreeable.
Posted 29/05/2010 - 00:10
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Chris - if the BoA meet comes off, I'll pack my DA 10-17 so you can get a feel for what 10mm looks like on a DSLR and how it comes with the DA 16-45.
Steve
Steve
In the Pack - Gripped K5 (SE),K7 & K20, Gripped MZ-S(SE)& MZ-S,DA10-17, DA12-24, DA14, DA*16-50, 50-135, 60-250 & 300mm; FA31mm/43mm/77mm Ltds; Sigma 8-16, 135-400 & 150-500
Half Backs: K10+BG,DA16-45, DA50-200
Backs: LXs,Super As and lots of A, M & K lenses
Impact Subs: 28mm Shift, K 135-600 (the Banahan of Pentax zooms ), 400-600 Reflex
Half Backs: K10+BG,DA16-45, DA50-200
Backs: LXs,Super As and lots of A, M & K lenses
Impact Subs: 28mm Shift, K 135-600 (the Banahan of Pentax zooms ), 400-600 Reflex
Posted 29/05/2010 - 00:33
Link
Steve Chasey wrote:
Chris - if the BoA meet comes off, I'll pack my DA 10-17 so you can get a feel for what 10mm looks like on a DSLR and how it comes with the DA 16-45.
Steve
The DA 10-17 though, being a fisheye, will produce a much _wider_ angle of view than a 10mm rectilinear lens (e.g. the Sigma 10-20)Chris - if the BoA meet comes off, I'll pack my DA 10-17 so you can get a feel for what 10mm looks like on a DSLR and how it comes with the DA 16-45.
Steve
chrissinkpen wrote:
That'll be a 16mm then
Thanks for your help
Regards
chris
It'll be 15mm-equivalent: the crop factor on Pentax is 1.5x (e.g. 10mm -> 15mm) - 1.6x is Canon
That'll be a 16mm then
Thanks for your help
Regards
chris
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