12-06-2011, 02:44 PM
[quote name='Brightcolours' timestamp='1323179758' post='13485']
It certainly does not look like a "crack", and this unfocussed I can't see if it is an air bubble or something else. Nor can I judge the size of the irregularity. If it is a bubble in a glass element, no need what so ever to worry. In the past, small bubbles in lenses actually where a sign of the high quality of the used optical glass, and as such were seen as an attribute of the high quality of the optics of a lens.
Such a bubble has no impact on the optics and following image quality, so you should have nothing to worry about. And since you find it to be super sharp and centered perfectly, just use the fine optical instrument!
[/quote]
Actually it looks more like a very small bite or minicrack in the lens element... Or, like a "glass speckle" processed in the lens element, if you want... Do you think it can somewhat appear on / influence the resulting image?
It certainly does not look like a "crack", and this unfocussed I can't see if it is an air bubble or something else. Nor can I judge the size of the irregularity. If it is a bubble in a glass element, no need what so ever to worry. In the past, small bubbles in lenses actually where a sign of the high quality of the used optical glass, and as such were seen as an attribute of the high quality of the optics of a lens.
Such a bubble has no impact on the optics and following image quality, so you should have nothing to worry about. And since you find it to be super sharp and centered perfectly, just use the fine optical instrument!
[/quote]
Actually it looks more like a very small bite or minicrack in the lens element... Or, like a "glass speckle" processed in the lens element, if you want... Do you think it can somewhat appear on / influence the resulting image?