Bifurcator
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nugeny wrote:
Gents,
In case you forget, you are in Gears forum.
That scope looks impressive. It would be nice if you can post some pics.
Bob
Well, I did already at that link I supplied but I guess it wouldn't hurt to put them here as well.
The first two examples are just what my camera is capable of on it's own with it's 28 ~ 200 fixed lens.
Zoomed (almost) all the way out:
30mm, 1/200 f/6.3, ISO 100, No spotting scope, 35% full width scale, No PP.
Zoomed all the way in:
200mm, 1/200 f/6.3, ISO 100, No spotting scope, 35% full width scale, No PP.
Then here's what it looks like through the spotting scope with my lens zoomed to 60mm:
60mm, 1/200 f/5.6, ISO 100, spotting scope used, 35% full width scale, No PP.
With my camera zoomed to almost 200mm the center crops look like below. At this point I was trying to expose for the bird's feathers and body so I opened up the aperture and lowered the shutter speed. Had I a decent camera body I would have have just increased the ISO sensitivity and not messed up the detail. Keep in mind here that these were taken at sunset and the Sun was already down behind the horizon Also the light was behind (and to the left) of the bird so that his dark side was facing the camera/scope.
200mm, 1/100 f/3.5, ISO 64, spotting scope used, 50% partial width (center crop) scale, No PP.
Here's a 100% crop of the RAW from one of the above images:
200mm, 1/100 f/3.5, ISO 64, spotting scope used, 100% partial width (center crop) scale, No PP.
Finally, here's a pretty good quality comparison (as opposed to zoom comparisons) between what my camera typically gets and what I got with it shooting straight up through the scope. These were taken at very close to the same time so the difference in sunlight from the rapidly setting sun isn't impacting the exposures as much.
1/200s f/6.3 ISO100 200mm (No spotting scope, no PP)
1/100s f/3.5 ISO64 200mm (With spotting scope, no PP)
If I use photoshop's image zoom to match the mag levels it looks like this scope is about x12 or x13 depending on how the blur/interpolation work. This means that with this scope I was affectively shooting a 2,600mm lens, with my shaky hands on the scope and camera, in low light, at 1/100s, wide open, with a 2/3rds sensor P&S camera. 
This is the Kowa TSN-884 Fluorite Crystal Spotting Scope as you may have noticed from my first post. Reviews can be read here:
http://www.freeportwildbirdsupply.com/pdf/Birding-09-2_Tools.pdf
http://www.optics4birding.com/kowa-tsn-883-spotting-scope-review.aspx
http://www.livingbird.org/netcommunity/bbimages/lb/pdf/ScopeChart2008.pdf
http://www.eagleoptics.com/spotting-scopes/kowa/kowa-tsn-884-straight-88mm-prominar-spotting-scope
The price seems to hover around $2,200 in USD or $1,800 when purchased in Japan.
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