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Trevor N

M27 with a dslr

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This image was taken using a modded 1000D through a SW 200mm PDS. I really need some flats for the widefield shot but was pleased with the tracking and the amount of detail the dslr picked up on the cropped image. There are 20 x 3 min exposures here at f5. The camera was at 1600 ISO and it was tracked with a finder guider arrangement. Trevor

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Nice image Trevor, you've picked up some good detail and the star colours look good too.

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Its very good but it needs a FLAT since you have a clear hot-spot in the middle which is to be expected.

You can make an artificial flat using photoshop as follows;

1, duplicate you layer

2, use dust&scratches to remove all the stars

3, use the clone stamp to remove the residual M27

4, apply a large gaussian blur

5, change the layer mode from normal to subtraction and blend it in using the opacity slider

Your done.

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Many thanks for the kind comments. I'll try that Neil and see what happens. Trevor

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Hello. Had a go at the widefield using Neil's suggestion. Seems to help thanks, Trevor

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Edited by Trevor N

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Thats a very impressive M27 trevor in particular the reprocessed image. Some great info Neil thanks!

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