FOOTPRINT
22-11-2005, 10:28 AM
Hi All,
The other night when I took M33, I got a few images of M42+M43 also (before the moon came up, at 2130 Hrs.) and ive tried combining them in photoshop, it does improve the overall image a bit, but adds the dark blobs same as the M33 picture, and yes I do remove a DF from each exposure before combining them, two at a time, then combine the results also, anyway this is where the dark blobs come from, the single image of M42 does not have these artifacts, looks like ill have to concentrate on learning how to use Images Plus and see if thats better (im certain it is), all exposures were 10 Min. at ISO-800, guided with the MX7C on the LX200, First picture is 2 x 10 Min. added, second picture 4 x 10 min. added, I posted the single picture of M42 on this forum last week, waiting for a good clear night to try M33 on the LX200 at F-6.
cheers...................Jim
The other night when I took M33, I got a few images of M42+M43 also (before the moon came up, at 2130 Hrs.) and ive tried combining them in photoshop, it does improve the overall image a bit, but adds the dark blobs same as the M33 picture, and yes I do remove a DF from each exposure before combining them, two at a time, then combine the results also, anyway this is where the dark blobs come from, the single image of M42 does not have these artifacts, looks like ill have to concentrate on learning how to use Images Plus and see if thats better (im certain it is), all exposures were 10 Min. at ISO-800, guided with the MX7C on the LX200, First picture is 2 x 10 Min. added, second picture 4 x 10 min. added, I posted the single picture of M42 on this forum last week, waiting for a good clear night to try M33 on the LX200 at F-6.
cheers...................Jim