Hi Everyone,
I would like some help in assessing if the manual SMC Pentax-A 1:4 70-210mm zoom lens I just bought at ebay is working properly or not.
The aperture f-stop increment from 4, 5.6, 8, 11, 16, 22, to 32. As I rotate the aperture ring from 4 to 16, I can see the aperture closing down inside the lens. But from 22 and 32, the aperture does not close down any further and is the same opening size as at 16. Is this normal? If you own this lens, would you be so kind to confirm this operation.
Any help would be greatly appreciated. Thanks.
mquon
I would like some help in assessing if the manual SMC Pentax-A 1:4 70-210mm zoom lens I just bought at ebay is working properly or not.
The aperture f-stop increment from 4, 5.6, 8, 11, 16, 22, to 32. As I rotate the aperture ring from 4 to 16, I can see the aperture closing down inside the lens. But from 22 and 32, the aperture does not close down any further and is the same opening size as at 16. Is this normal? If you own this lens, would you be so kind to confirm this operation.
Any help would be greatly appreciated. Thanks.
mquon