![]() ![]() There are numerous online examples of good astrophotos taken with this lens. You can evidently shoot it wide open at f/4, which in my opinion gives a decent aperture for deep-sky. But if you can save up some more cash or buy used (always a good option) a Canon 300mm f/4L would do very well for DSOs. So the question is, for similar money (the Sigma is about $900US and Canon 200mm about $800US), is there another option that would work better for both applications? The Canon 200mm f/2.8 lens would be much better all around for deep-sky astrophotography but, as you say, too short for getting decent shots of the moon. And at that price the image quality from a zoom will never be as good as from a prime or even from a comparable telescope. It's optically slow and overly heavy, assuming you would want to mount it on your tracker rather than a full-blown EQ mount. However, unless you have a burning need for a lens for birding or other wildlife photography, this lens is in the wrong direction for astrophotography. Perhaps it refuses photons from other DSOs.Īs the examples of Moon images already posted in the thread show, it does okay on the moon as well. ![]() Strangely, I couldn't find any images of objects other than those in Orion taken with the lens. The Sigma 150-600mm would be an improvement judging by online example images I have found, including these: That zoom is truly not suitable for astrophotography I have yet to see a decent astrophoto taken with one, at any rate. I have not used any of the lenses you mention, including the Canon EF 75-300mm zoom that I will guess you got bundled with your camera. When you ask for advice it's polite to at least acknowledge the replies. It's not encouraging that you have not replied in a while. I enjoy what I do get and I've had some great images.Īny sage advice or expamples would be welcome. I don't have time, knowledge, equipment or the patience to take and stack 300 images, and I'm ok with that. The images of the moon from the canon 200mm didn't impress me much, but the nebulas were lovely.Īs a side note, at this time, I do not spend much time in post processing. (Big Milky Way shits are my first) With so many conjunctions/occultations this year, I am tempted to go to a higher mm. Im currently looking at the Canon EF 200mm f/2.8L II USM Lens for use with my iOptron, but this is appealing because the cost is similar, and this does seem to do amazing shots of the moon, which is my 2nd favorite target. I have a 300mm that came in my "bundle" and it's great during the day, but makes my stars purple at night. Can it do ok with stars when imaging Nebula? I'm not a huge fan of sigma, the 2 I've owned are not good for astrophotography. What are your thoughts about this lens for moon imaging AND also on my iOptron mount at 150-200mm. ![]() I still consider myself a newb to astrophotography, even though I've been doing it for years, and I am beginning to expand my horizons a bit more. Note that this is not the sports version. ![]()
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