Gibt es zwischen dem F50/1.4 und dem FA50/1.4 nennenswerte Unterschiede?
In einem engl.-sprachigen Forum konnte ich nur das hier finden:
Quelle: Klick
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In einem engl.-sprachigen Forum konnte ich nur das hier finden:
I have both lenses and recently I noticed something different in the metering between these two great lenses.
Somehow, in Av mode with camera (K100D) set at the same aperture & same ISO, the sthutter speed with F 50/1.4 shows 1/3 faster than the FA 50/1.4.
Both lenses are aimed at the same target at almost the same time.
So for example both set at f/1.4, ISO 200:
F 50/1.4 shutter speed is 1/30
FA 50/1.4 shutter speed is 1/25
I know it's only 1/3 different, almost negligible probably, but it's interesting to know why.
Is it because the optic of F 50/1.4 is better than FA 50/1.4 like what is quoted in here: http://home1.gte.net/vzeehbv4/html/pentax_primes.html
Where F50/1.4 is rated as PERFECT and FA50/1.4 is only rated as GREAT
The reason I was testing this is because I want to sell one of them and now I don't know which one I should keep. It seems F 50/1.4 is perfect but the FA 50/1.4 is newer design.
Can somebody give suggestion? If you were me, which one would you keep?
Also, does anybody know how much is the ongoing price for a used F 50/1.4?
I couldn't find any reference for this lens.
Thanks,
Quelle: Klick
Kann das jemand bestätigen oder hat hat jemand sogar gegenteilige Erfahrungen gemacht?