Hi Stefan ... Yes, Tony addressed this issue on his workflow writeup where he said "expose for the highlights, and let the terminator fall where it will"...
I find that increasing the gamma can help with terminator shots. This increases the contrast in the darker areas whilst not saturating the brighter ones. The...
Sorry, Jim, I tend to do that as a short-hand. The details being elsewhere on my web site. It is a 10-inch LX200. Thanks for the compliments. More images...
I tried increasing the gamma of your picture to 1.5, and the dark areas show up much better without, I think, ruining the bright areas. Temporarilly at ...
Dave, ... 8-bit ... effective ... is evident ... I'm not sure about this but I assumed that the number of of bits related to how the dynamic range is divided...
Hi Oliver, A very nice set of images indeed! The unique thing I don't like it's your personal seeing evaluation. IMHO is totally wrong! :-)) ... -- Ad astra...
Hi Stefan ... I see what you mean - I think you are talking about sensitivity, perhaps. Otherwise I can't see the difference between what you are saying and...
Dear observers and investigators of Total and Partial Solar Eclipses, What I want to know: Are there investigators who want to observe the limb of the...
Thats more what I had in mind Peter. I managed to download Peters version and tweaked it , by increasing the contrast in levels and selecting the area on the...
Dave, I dont think I explained it very well. Its not the same as sensitivity, which I would equate more with the ISO/ASA settings on a film camera, or the gain...
Hi Stefan ... I think so. I think what you are referring to is the well-depth. I don't know how much you know about CCDs (I don't know much but there's a...
That's very similar to the version I got when I put just a little bit of a hump into the lower 3rd of the curve. Tony ... [Non-text portions of this message...
My basic procedure goes like this: Setup Virtual Moon Atlas for the correct date and time. Find two distinctive points in the image area and measure the...
Dave, Thanks for the link, I will read it thoroughly as well as the Kodak stuff it links to. The article describes how the well depth is related to the dynamic...
I tend to see dynamic range and bit depth to be to separate things. I lot of people think that more bits means better dynamic range but that's not necessarily...
Couldn't have put it better myself Tony, and in fact I dont think I did! I had a look at the specs for the Lumenera cameras to see what their dynamic range is...
Here's the first image of the next group from the session on the 24th. It's our old friends Tyco (and yes I'm sure it really is this time!), Wilhelm and...
Don't mind a bit. I would hope that folks would feel free to experiment and improve on all this stuff. That's why we're here, to learn, try and improve. That...
... It depends on where you put the noise floor but those values look reasonable. ... It's hard to compare these side by side without the numbers in front of ...
Thanks for the info Tony. It looks like the number of bits used by the ADC are commonly being used as a guide to the actual dynamic range (which is not totally...
True and I'm sure that for the most part they really don't want the consumer to have a number they can use to easily compare camera A to Camera B. Tony ... ...
Dont think there are any domes in Longomontanus Tony...what you are probably looking at is the eroded central peak or the bright halos of ejecta brought up by...
... You're probably right, the reason I called them that is because someone point ot similar features in another crater and called them domes. As you can tell...
You are right, Dave. It does on mine too. I suspect that could have been dealt with in the stitching. I use iMerge and don't get this problem, I think. ...
Well, it is not real LUNAR OBSERVING, but there is a sort of vague relationship. When the Partial Solar Eclipse is going on (monday the 3th; over Europe and...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
