On 7/11/2017 21:54, Mark Roberts wrote:
I expect there will be more than a few of us attempting to photograph
the eclipse next month. I've just started a little research into it
and I'm closing in on a decision as to what filter to use. My longest
lens is my FA*300/2.8 and it's happily configured with an in-lens 43mm
filter capability. Here's what I've found that looks most promising:
https://www.optcorp.com/spectrum-threaded-camera-solar-filter-43mm.html
Anyone have any experience or other recommendations?
I've talked to several people who photographed previous eclipses and was
told not to use the internal filters because the lens will concentrate
enough light to melt them & besides messing up the filter it can damage
the lens & the sensor. One of my sources stated he had found out the
hard way.
I got an Astrozap AZ-1514 Full Aperture Glass Solar filter that fits
over the lens hood on my 300/2.8 - "Full Aperture Glass Solar Filter
124mm-130mm (4-7/8 to 5-1/8) diameter."
https://www.astrozap.com/scripts/prodList.asp?idCategory=36
I tried it out at GFM. It worked just fine, but I'm still learning how
to aim the camera. I should measure the lens hood diameter on my
80-200/2.8 Tokina ATX-Pro and order a filter for it.
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