raul_zav

<p>I will have the pictures taken with the original hood very soon. I will update on what I got later. <br />thank you all! </p>

<p>Many thanks for your help, guys! Seems like I'll get a proper hood firsthand and see if it helps</p>

<p>James: I do not use hood, so I can't say if it will change anything in this case.<br> by symmetry I meant vingetting </p>

<p>Ray: actually it DOES happen mostly with front/top light. What does it mean? I don't have another camera to test the lens.<br> but since other lenses work fine, I thought the body is ok.</p>

<p>Thanks for the reply.<br> Straight lines and focus seem fine, and I do not use hood, which usually cause symmetrical problems. The barrel of the lens is indeed slightly wobbling</p>

<p>Dear friends,<br> I shoot with leica M6, and recently came across an issue with the contax sonnar 90mm converted to M mount. The images have an over-exposed patch of uneven shape , usually at the top center (see photo). Does anyone encountered similar problems? The camera is not a problem, as with my 50mm and 135mm leica lenses I do not have this issue. Also I have my films developed at same place. I wonder whether this could be caused by loose parts in the lens, which may cause a slight angle between the image plane and the film surface.<br> Thanks for your help!!<br> Raul</p><div></div>