Fast Astrograph

avandonk · #1 11-07-2006, 01:25 AM

Here is the latest offering from Takahashi, 500mm F 2.8 with a 44mm diameter flat perfect 10 micron star image circle. Check out the pictures!
Here
http://www.anacortestelescope.com/pr...t=8&pid=9409&m=

Bert

Lester · #2 11-07-2006, 05:03 PM

Sounds prity good Bert,

Would like to see some images with it. The 80mm diameter secondary is a fair size. But 500mm f2.8, that would capture something in no time flat.

avandonk · #3 11-07-2006, 05:37 PM

Here are some pics
http://www.anacortestelescope.com/pr...ery#gallerynav

Bert

CometGuy · #4 11-07-2006, 05:43 PM

Bert,

I've got the old 160mm f3.3 and it is superb, this new scope is meant to be even better. FYI, here is a centre + corner crops from my 160 f3.3 on a 300D:

http://www.pbase.com/terrylovejoy/image/33613032

Keep in mind with the obstruction the effective f Ratio is closer to f3.5, not that it matters that much

Terry