Bosmina longirostris, 2 images added

rekuwi · Post by **rekuwi** » Tue Aug 07, 2012 8:38 am

Hallo,

in the "Hattsteinweiher" near Usingen lives this waterflea. I show You fife Images in different focal planes:

Objektiv 25 x, DIK.

Best regards
Regi

Cactusdave · Post by **Cactusdave** » Tue Aug 07, 2012 9:44 am

Very nice Cladoceran. One I've never seen myself. Looks from your different focal plane images as though they might stack to give you a single image with nice depth of focus. I don't know if you have tried that? Also looks like you have a green colour cast issue and a bit of purple fringing. Both of these are easily fixed in Photoshop or other image processing software to give you a nice grey background .

rekuwi · Post by **rekuwi** » Tue Aug 07, 2012 1:21 pm

Hallo Dave,

thank You for answering.
The Cladoceran mowed his legs. So stacking was not possible.
Surely I could made the background grey, it's easy with photoshop. In order to remove color fringing Unfortunately I lack the knowledge in this program. But I'll try to learn.

Best regards
Regi

Mitch640 · Post by **Mitch640** » Wed Aug 08, 2012 8:49 am

He looks like a little elephant. Nice images.

rekuwi · Post by **rekuwi** » Wed Aug 08, 2012 1:35 pm

Hallo Dave,

one image with grey background:

one without any colour:

Do You think that's better?

Hallo Mitch,

I think so too

best regards
Regi

Cactusdave · Post by **Cactusdave** » Wed Aug 08, 2012 2:51 pm

Personally I do prefer the grey background. It's easy to remove that blue/purple fringing as well. In Photoshop go to the Enhance tab. Select Adjust Colour from the first drop down and Adjust Hue/Saturation from the new drop down. In the Adjust Hue/Saturation window replace the default choice of Edit Master with Edit Blues from the drop down. Place the Eyedropper symbol over a typical area of blue fringing, you may need to zoom in to do this accurately. Then move the Saturation slider to the left watching the effect as you do so. about -80% usually does the job. Watch that other colours are not being affected too much.
Once you are happy with the result it is usually worth applying a little sharpening and increasing contrast a little.

rekuwi · Post by **rekuwi** » Thu Aug 09, 2012 2:04 pm

Thank you Dave for the description. I've tried it and this is the result:

best regards
Regi

Cactusdave · Post by **Cactusdave** » Thu Aug 09, 2012 11:24 pm

What do you think? I think that came out pretty well.

rekuwi · Post by **rekuwi** » Fri Aug 10, 2012 8:31 am

Dave, I like it too!
Nice that I now know how I can eliminate color fringing. (It's really easy).

Regi