Quote:
Originally Posted by billdan
I was just reading about how to build a cold box for the DSLR using Peltier technology, it reduces the camera body temp. by 40F, thats something I could do. ( QLD humidity may stop that idea). Probably have to pay for the filter mod though.
Am I right in saying the F4 is supplied camera ready as far as back-focus is concerned ( its advertised as an astrograph). If so the TS-9 may work straight away without any mucking around with longer collimation bolts.
On my 12 inch I had to install a low profile focuser for my DSLR to achieve focus, so I can always use that.
Bill
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Hi Bill,
I'd suggest keeping the camera mods for phase 2. you can still do heaps with an unmodded dslr from dark skies.
There's lots to learn with processing, guiding, accurate goto's, balancing, focuser slop, getting all the software bits working that'll keep you busy.
This image is far from even good, but it was my first dso from a home built mount. it was taken with an unmodded, uncooled canon 1000d from melbourne suburbs.
http://www.iceinspace.com.au/forum/s...ad.php?t=73042
so you should get some good results with an eq6, guiding, 8"F4, MPCC and a dslr from dark skies.
IMO, keep your subs to less than 5 minutes, enable dithering, get your guiding, collimation, image train flex controlled and you'll be singing.
As for back focus, its best to ask the supplier. but if its advertised as an imaging OTA, you'd expect it be usable with cameras from the start.
Another member here Justin got a similar setup with the 8"F4 with the stock Bintel focuser and I don't think he needed any mods to achieve focus.
good luck
some nice images there Richard.