Pretty cool Doug! The 400mm looks to be a keeper. I guess thats the downside of going long on subs, you're bound to pick up satellites, planes, cosmic ray hits, etc. Nothing data rejection can't resolve of course. I think your images could do with some more green in them. This will keep the magenta cast at bay. Other than that, top work.
Pretty cool Doug! The 400mm looks to be a keeper. I guess thats the downside of going long on subs, you're bound to pick up satellites, planes, cosmic ray hits, etc. Nothing data rejection can't resolve of course. I think your images could do with some more green in them. This will keep the magenta cast at bay. Other than that, top work.
Thanks jase - the 400mm lens has become my weapon of choice. Your advice as always is most appreciated
Quote:
Originally Posted by Ross G
DSLRs and lenses is starting to become my favourite form of astroimaging. So portable and a huge choice of FOVs and filter options.
+1 on that Ross although I've always got my eye on the elusive FSQ/FLI combo!
Cheers mate.
Not a bad set of images. Seeing that re-entry image takes me back a couple of years now. What a weird experience it was seeing this live.
I am considering getting a Nikon adapter for the QSI so I can use my 300mm f2.8 lens on it. I like the idea of getting something like this together for trips and doing some more wider field work.
Not a bad set of images. Seeing that re-entry image takes me back a couple of years now. What a weird experience it was seeing this live.
I am considering getting a Nikon adapter for the QSI so I can use my 300mm f2.8 lens on it. I like the idea of getting something like this together for trips and doing some more wider field work.
Cheers Paul - just a bit of an experiment really.
That lucky re-entry pic got me on 'Universe Today' - infamy!!
Thats a fantastic image man. I also have a 400mm f5.6 I look foward to giving it a shot next new moon.
I had a thought the other day, taking a couple of shots in monochrome mode with a colour filter inbetween then merging the images. obviously tough with a lens, but on a 400mm scope quite easy.. whats your opinion on this. an attempt to get better colour reproduction
Thats a fantastic image man. I also have a 400mm f5.6 I look foward to giving it a shot next new moon.
I had a thought the other day, taking a couple of shots in monochrome mode with a colour filter inbetween then merging the images. obviously tough with a lens, but on a 400mm scope quite easy.. whats your opinion on this. an attempt to get better colour reproduction
Cheers Steve - the 400mm f5.6L is a great lens for astro due to the minimal number (7) of lens elements it uses to get a nice flat, colour-corrected field.
Monochrome mode on the DSLR isn't the same as true monochrome I'm afraid as the camera just produces a B+W version of the RGB image. The bayer matrix filter used to produce an RGB image is still in place on the sensor unlike a mono ccd camera... http://www.cloudynights.com/ubbthrea...8/Main/4598730
Reckon that's a nice improvement over the previous version. Those stars seem to have tightenned up nicely.
Had a go at reprocessing some of my old images of this target but was overcome by the noise of my uncooled DSLR and gave up.
Craig
Quote:
Originally Posted by midnight
Some good colour in there Doug as well as the detail is quite good too!
Congrats - It seems a really good combination.
Darrin...
Cheers Craig and Darrin,
But, I don't think I'll be pushing the lens with 100% crops in future.
Still, it's nice to see the resolving power of the lens.
Doug
M20 - pushing the 400mm lens a bit!?
That and the 15min subs!!!
from an earlier experience.
