My macro lens produces a lot of little dots when 1:1 or close to it.
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Re: My macro lens produces a lot of little dots when 1:1 or close to it.
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Photography Raptor wrote:
Rodger in Edmonton wrote:
Photography Raptor wrote:
Rodger in Edmonton wrote:
Use a flat white , well illuminated as the goal is to see imperfections, a shot of a stucco wall mimics the problem you are trying to find - use a flat white surface akin to this text page white... try the in and out of focus o bot sides for each lens - you should be able to see pretty soon - I have a similar issue - dust on my sensor and + pollen stains/ scratches on my external element - a Canon 100 L macro
Don't know where I can find a flat white wall at the moment.
Could it be due to the sensor then? Like it appears because of the magnificacion. I haven't found the issue in any other lens.
edit: OMG, I've just cleaned the sensor and that was the problem.
Thank you very much. I was almost certain that it was the lens' fault.
Nikon Z6 sensor gets dirt so easyly. Even if I'm ultracareful when changing lenses.
I think it's dust and grit on the sensor, ask other opinions in the Nikon Z forum and if they have the same issue they may have best practice advice for this specific model of camera
If you hold the macro lens up to a strong light or inspect it with an LED pen light light and slowly tilt it at angles to reflect - can you see any small nicks or imperfections?
If the answer is no no matter how hard you look - it appears perfect glass - not sure what else can account for it - ask in the Nikon mirrorless forum for their view
It has to be the sensor because when I cleaned it it almost disappeared. Funny thing is that there's always some dots and they move when I clean the sensor, but i can't manage to clean them all.
The weird thing is that they are only visible with my macro lens focusing close. That's why I asked here, because maybe it was a fairly common thing with macro lenses to be more prone to show dust in the sensor when focusing close.
Anyways it seems like I half solved it
You are more likely to close a macro lens down to f/16 or f/22, which makes the dust more visible.
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