Endeavouring always

By Markyplyme

Infra Red test...

Taken with my Sigma 24mm... doesn't appear to be a hot spot, so this may be the lens I use for IR from now on, with the R72 filter. If anyone can see a hot spot please let me know, if not I'll be posting the lens info up on the IR info sites (as I've found no ref to it yet).

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