Hi, i tried what you said. I tried with even slower shutter speed but the aperture does not close down. I am new to photography. Is the lens faulty?

Hi, Cabstar, I just got the problem. I closed the aperture all the way down and as soon as i mounted it to my camera the aperture opened wide. but after mounting if i change the aperture it stays open. is there any solution?

No, that's why I can't figure out what's the problem. Aperture opens and closes properly like my Pentax M 50mm f1.7. I am using Pentax K-5. I just sent a message to the ebay seller. Last time our conversation was not good since his replies were google translated from german to english. I will contact ebay if he does not communicate stating the reason. Ebay item description stated that the lens did not have any major problem.

Hi Daniel, I tried with all modes. The lens even works in auto mode. My Pentax M lenses do not work in auto mode. Also I changed the "using aperture ring" option in menu setting to "prohibited" just to check and yes even then the shutter works. I feel like that the camera cannot detect the lens or I dont know.

Regards,
Jalal

I bought a Porst Color Reflex Auto 55mm f1.2 from ebay Germany 8 days ago and it was delivered today. The lens is fine but when I took picture I realised that pictures come out the same no matter what the aperture is. Also, when I press the green button for metering, the shutter speed remains same for all apertures f1.2-22. I am showing two pictures here one at f1.2 and the other at f16. The aperture ring closes and opens properly.Could you please tell me what's wrong. Should I return it?
Just checked auto mode (The lens is manual) and even then the camera fires. It seems like the camera cannot detect the lens properly. Its a K fit lens so I am not using any adapters.
f1.2



f16

Good price I must say. Three weeks ago I won an auction for £98 +£8 for special delivery.

Took a few pictures with AF, only 1/5th got focus on birds. I understand why people say manual focusing is the best even for action shots. Need much practice though.

Marselus, big thanks to you mate . I offered you two options to pay, bank transfer and Paypal. You trusted me and paid me within 20 minutes via bank. If there was a same day delivery I would post via that (just googled and found that there is same day delivery lol, probably too expensive). I am happy that you are happy with the lens

Regards,
Jalal

SOLD to Marselus who BANK TRANSFERED. I hope admin does not delete this comment. There are still reliable and sensible people in this world.

Regards,
Jalal

Need money urgent. Price dropped to £125 if you buy within 12 hours. Pictures from my ebay.