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What has happened to my lens?
The past 2 nights in a row, trying to shoot the milky way in the exact same way i have done in the past with no problems, using all the same gear, eos 600d, 10-22mm lens at 10mm F4.5 and ISO 3200 35sec subs.. Ive used this many times to good effect, but last night and tonight something has gone awry.
Now after stacking in DSS (without any processing as its hardly worth it) im getting massive coma? Are those single subs (1 included) bad enough to do that?. I thought it was a one off so i went back tonight and replicated it and had the same problem. I'm not sure what has gone wrong between in the past and now, or if I am forgetting something.
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