GlimmerMan wrote in post #19114841
Dude, there is something with technique that is not working in that image. Are you cropped in at 2-300% ?
Stopping down is probably the wrong way to go unless you're only going to f2.0 or f2.8.
You might be missing focus, so that is something to check during daylight. Maybe try this:
Manual focus. Go to infinity and then back off a little. See if that works in the daylight then you'll just have to repeat at night and check your frames after each exposure.
ISO 3200 F2.0
15 second exposure, which might be a little too long for a 50. So shoot a few at ISO 5000 and 10 sec.
Disable any lens or camera image stabilization.
Use a 2 sec timer on your shots.
If you're not shooting RAW then set your WB to 4300.
Just my2c. Hope it helps.
yeah, I'm pretty sure the focus was off on this shot, others that night were focused fine, must have accidentally changed focus and didn't realize it, no matter the edit it seems soft, definitely no crop which is almost what it looks like too huh. I'm happy with everything about that image except for that I should have stated. I was borrowing the 50 that night and was running out of time to do so. that lens in particular i know has issues idk if that is what did it, been wanting to pick up a new 50 STM and maybe won't be so rushed and on my own time. I'll keep other settings you mention in mind though for next time!
Shortaction wrote in post #19114841
With a crop sensor camera you should divide 300 (500 for a full frame) by your lens focal length to determine your longest shutter speed. So 300/50 would be 6 sec shutter speed. You would need to increase your ISO to 3200-6400. Set your shutter for 2 second delay. Play with your focus, not sure if the 90D has a magnification your back screen but if it does set it to the highest magnification and then turn your focus till the stars are just pinpoints. Turn off all in camera noise reduction and lens IS if it has it. You aren't going to get the cleanest picture with that sensor, but you should be able to create some nicer that your present results.
well that would explain why the pictures were so blown out bright! Where i was out shooting i had no phone reception and couldn't remember exactly what the 500 rule stated so i just went for the settings i had used last time of ~13 second exposure on my 24mm. Need to create myself a little cheat sheet and stick in my bag for next time.
Canon 90D with Grip - Canon 18-200 f3.5-5.6 IS - Canon 24mm f2.8 STM - Opteka 500mm f8 - Canon 55-250mm f4-5.6 IS