Recent content by Alllfff

I have contacted Sigma and they invited me to send it over but they would quote a price on the repair since it is out of warranty (4 years old)...what do I do now? It was actually my only buy from Jessops, all other lenses I had from ebay, B&H, and gumtree. This one was from Jessops... Yes I...

WOW, ladies and gentlemen please sit down... I just took a photo of the spots with my macro lens... What does this look like to you? I knew sigma was cheap, but that cheap?! To all of you that say dust inside the lens shouldnt influence the image, I agree! From my degree in nanotechnology...

Correct me if I'm wrong here but a) the spots show only with this lens b) if they were on the sensor they wouldn't change apperance with changing lens settings. c) I can see matching pattern of three dots on the front element of the glass of this one lens WITHOUT it even being connected to...

"These spots appear to be on the inside of the front element." Yes I can, they are inside...

I have recently asked about glares and artifacts in my night photographs. However the more I looked into my photographs the more I notice, that from my Sigma 10-20 all images with F/ higher than say f/13 show three spots exactly at the same spot. So I played around with the lens for a bit...

Aha. Of course! Makes all sense now. Thanks

Thanks for the advice, the thing with these night photos I couldnt see any of these flares in the viewfinder when composing.

Firstly I wanted to thank everyone for their input, secondly I have gone to the images from the night and looked into photos with opened up lens and found this one :( f8 at 1/4s with the 18-50 sigma @ 34mm

No, I had a filter on the 50mm and it was doing it as well so i took it off and it stopped but not with the 10-20 or 18-50, there wasnt a filter on either of them.

Hello everyone, Yesterday night I went to take some photographs of night Edinburgh with all the Christmas market and attractions. I have very quickly discovered a problem I was having. I had lots of glares and ghost spots on all my photos, wether I took my Sigma 10-20 or my Sigma 18-50. So I...