All Forum Comments
Comment by johnriley posted on Is this fungus? at 13/11/2013 - 14:34
It does happen, but I wouldn't say it's common. I deal with hundreds of lenses in a year and only a handful have such a defect.
It can only get worse, but slowly I would expect.
It can only get worse, but slowly I would expect.
Comment by johnriley posted on Is this fungus? at 13/11/2013 - 13:35
No, fungus looks like a spidery growth. It look to be like a spot or two of balsam separation, where the cement between elements breaks down.
I doubt that such a small defect will have any effect at all on image quality.
I doubt that such a small defect will have any effect at all on image quality.
Comment by johnriley posted on Is this fungus? at 13/11/2013 - 12:59
Many birds have iridescent feathers Nigel, including the humble pidgeon. It can be quite spectacular when the light catches the back of its neck.
Comment by johnriley posted on K3 resolution at 13/11/2013 - 11:51
Hopefully so John.
Comment by johnriley posted on K-3 Vs. K-5iis at 13/11/2013 - 11:07
Get rid of the filter and test again.
Why compromise the carefully computed optical formula of a lens by adding an extra piece of glass in front of it. The only exceptions are where filters are needed, such as polarisers and grad filters.
But always use a lens hood, which helps to protect the lens from knocks and also reduces flare within the lens.
Why compromise the carefully computed optical formula of a lens by adding an extra piece of glass in front of it. The only exceptions are where filters are needed, such as polarisers and grad filters.
But always use a lens hood, which helps to protect the lens from knocks and also reduces flare within the lens.
Comment by johnriley posted on Ghosts II at 13/11/2013 - 10:53
I think Matt has a point. There's a problem at this moment in that nobody's software will have been updated for the K-3.
I've been working with JPEG files and they are by definition already updated for the respective cameras.
I've been working with JPEG files and they are by definition already updated for the respective cameras.
Comment by johnriley posted on K-3 Vs. K-5iis at 13/11/2013 - 10:49
Thanks Chris, I'll have a look at what they did later.
Comment by johnriley posted on K3 resolution at 13/11/2013 - 09:02
It is almost impossible to induce moire effects with the K-3. I know because I was trying to for a long time last night, without much success. I was pleased to read on the AP forum that Richard Sibley had been having the same problem.
The penguin head doesn't even come close to a problem image in this respect.
The penguin head doesn't even come close to a problem image in this respect.
Comment by johnriley posted on K3 resolution at 13/11/2013 - 08:33
Quote:
even if the IQ has gone down a bit compared to the K5s
That is absolutely not the case.even if the IQ has gone down a bit compared to the K5s
Comment by johnriley posted on K-3 20 page review out at 12/11/2013 - 22:12
Before you discount the lens though, try a small amount of lens cleaner on the front element, just in case it's just grease that's been stubborn. Apply the cleaner to a cloth, not to the glass, and use sparingly.