I'm back after several days without internet or cable TV, courtesy of 
the storms and tornadoes that went ripping through here last week.

I spent the down time thinking up cryptic email subjects, like the one 
above.

But - I did actually pick up an R72 IR filter today and ran it through 
some head to head comparisons vs the RM90 on the *ist-D. The gory details:

http://tinyurl.com/2zde8v

or

http://www.markcassino.com/b2evolution/index.php?title=digital_infrared_hoya_r72_vs_rm90&more=1&c=1&tb=1&pb=1

The readers' digest version:

- R72 is about 3 stops faster than RM90.
- R72 white balance seems more problematic.
- R72 is a lot less prone to sensor flare.
- I still want an IR converted camera.

So skip the blog entry (unless you want to see the pictures.)

- MCC

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Mark Cassino Photography
Kalamazoo, Michigan
www.markcassino.com
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