Quote:
Originally Posted by Stephen Fox
I am impressed with sharpness retained using 1.7X TC with the primary lens virtually wide open (f3.3~ish)
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Well this one will sound like a nightmare then
Another bracket making session today. I was going to look at the scope then thought if Sassan can do a x3 converter job on his 600 why not try two 2x converters on my 80-200. Although it means more elements than I care to think about, I feel it worth a try.
I did a sample shot using a milk container saved from the ring flash job. Takes in Robs bar code test. The full frame shot taken from 20 feet away is attached.
My Slik weighs 6kg but I hung a further 10kgs from it to increase stability for this shot, nearest thing to nailing tripod to the patio. Focusing will be the biggest problem as this combination is f11 wide open.
A few mods later, ie trying to do away with perching a bag of sunflower seeds on top to dampen any shutter vibration, and attaching the riflescope for easy planet aquisition, and thick fog had decended as can be seen from the attached pic of the camera. No chance of a proper trial tonight.
Don