On 30 Nov 2005 at 15:54, graywolf wrote:

> Apples to oranges comparison. I have a 24mm/f2.0 lenses. Will it produce 
> better results than a 24mm/f.2.8 lens which costs less than 1/2 as much? 
> In my case yes, because I quite often use it at f2.0. Now let's think 
> about someone who always uses flash in low light situations and never 
> goes below f5.6. My lens would be overkill for him the cheaper lens most 
> like producing better results than the more expensive one.

Interesting comparison you raised here. Having owned and used a Pentax FA24/2 
and A24/2.8 concurrently I found that the loss in image quality of the f2 lens 
at f2 or f2.8 was such that I preferred using my f2.8 lens wide open when 
shooting in marginal light. The possibility of occasional image degradation due 
to camera shake was preferable to the stop of extra speed but overall poorer 
image quality. The f2.8 lens was the lower cost but higher performance option 
in this case considering the variables that were of 
primary interest to me.


Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications/
Pentax user since 1986, PDMLer since 1998

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