Originally posted by Penview52 I don't have the lens with F1.8 to F22 to test it but I believed that aperture and solenoid is not the culprit. It works good in some instances is bad. The time ( speed ) of exposure make sense to me and investigate further. I will go beyond auto mode and the future will tell until i found the cause of the failure. Your ideas are appreciated.
You don't need a fast lens with F1,8!
You can use your Kit-Lens, and lens with an A-ring no matter how fast.
What is the difficulty?
If your Kitlens DA-L 18-55 is used, then you use Av mode and set aperture on f4.0
That's all that is needed.
And best after the K-S2 was not used for a time.
You have complained about aperture issues in the past, even gave advice how to deal with it.
So now you can apply your knowledge on your own K-S2
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Originally posted by sergiogonzalez Hello Penwiew52
Your camera works properly. If the diaphragm was close in f22/32, which is the situation where the solenoid fails, the two photos would be identical and only the window would come out very dark.
No, the very opposite but I think this is a matter of language only because of course you understand the issue:
The DA18-50 has a range of f4,0 - f22 at 18mm (and f4,5 - f 32 at 50mm)
The solenoid, if healthy, will actuate from f4,0 - f16 in 18mm position
and f4,5 - f 22(or 27) at 50mm
It does not have to actuate at the minimun aperture of f22/32
and will give perfect results if the lens in AV-mode is set to f22/32!
So the possible results will be (here 18mm focal length):
f4,0 very dark
f5,6 pretty dark
f8 dark
f11 some light
f16 almost fine
f22 fine
Also at the beginning of the stuck solenoid there will be almost fine photos in Live-View mode but Exif-data will show the wrong metering, because metering is with f22 (18mm) but should be f4.0
I just repaired 2 x K-S2's very recently.
Last edited by photogem; 12-10-2020 at 11:48 AM.