It was a perfect day to shoot infrared
with white puffy clouds and a blue sky.
There seems to be a hot spot but it's
not as defined as the CoolPix 5000
has. The camera is still useable for infrared. It might be vignetting from
the zoom setting.
Click on a thumbnail to open the
full size original Jpeg for examination
Scroll down for two more images
The camera was set to 100 ISO and a 46mm 88A filter from
Harrison and Harrison was used. I held the filter reversed in front of
the lens so it fit, being careful not to get my fingers in the pictures.
But I did so there were a few that I had to delete. I also had to delete
some images from camera movement. Though I had the camera mounted on a
tripod, I was putting pressure against the front of the lens to hold the
filter in place.
If I were to do it now, I would use the
filter adapter from Bernie Heins
to position the infrared filter in front of the lens.
Conclusion The camera definitely has infrared sensitivity. Most importantly was that
the 5700 (and the 4500) didn't exhibit the same defined hot
spotthat I documented with the CoolPix 5000. But the images do
appear to be lighter in the center.
Photoshop actions taken on the black
and white images
were identical and limited to:
Image>Adjust>Hue and Saturation>Desaturate
Resize to 400 pixels long dimensions
Unsharp Mask on the image layer
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