Old 10-25-2006, 03:36 PM   #1
fullreversal
Member
 
Join Date: Apr 2006
Location: Lawrence, KS
Posts: 34
Send a message via AIM to fullreversal Send a message via Yahoo to fullreversal
Default Stuck at #1 in the Queue...

http://www.railpictures.net/viewqueued.php?id=301004

What would keep this stuck? (It's been there for about a day or so) My guess is that they could reject it for overexposure, but even at 15 second exposures the lights illuminating the ballast were blown out. Can't fix that. However of all the railgrinder shots in the database, I really think this one should be part of it.

Thoughts?

TIA,

Darrell
fullreversal is offline   Reply With Quote
Old 10-25-2006, 04:16 PM   #2
alan-crotty
Senior Member
 
alan-crotty's Avatar
 
Join Date: Mar 2006
Location: Ashford Kent England
Posts: 349
Default Stuck?

Hi Darrell,

I had a pic "stuck" for two days once, I emailed and asked what had happened, reply was that the screener wanted a second opinon from the editor.

It was an unusual pic so I quite understood. The next day the pic was on the database.

Alan
alan-crotty is offline   Reply With Quote
Old 10-25-2006, 04:19 PM   #3
alan-crotty
Senior Member
 
alan-crotty's Avatar
 
Join Date: Mar 2006
Location: Ashford Kent England
Posts: 349
Default Bit Blown

Darrell, just looked at your pic, seems a bit blown in the highlights.

Very interesting shot though, do you have another with good highlights?

Alan
alan-crotty is offline   Reply With Quote
Old 10-25-2006, 04:43 PM   #4
fullreversal
Member
 
Join Date: Apr 2006
Location: Lawrence, KS
Posts: 34
Send a message via AIM to fullreversal Send a message via Yahoo to fullreversal
Default

alan -

I took about 20 photos of various settings. When I get back from campus today I'll post up a few of them. The best shots seemed to be at about 45 seconds, F4 to 4.8 at ISO 200.

I had a thought to take one of the darker images and combine it with one of the lighter ones in MatLab's Image Processing toolbox to get some details back in the highlights.
fullreversal is offline   Reply With Quote
Old 10-25-2006, 05:34 PM   #5
a231pacific
Senior Member
 
a231pacific's Avatar
 
Join Date: Jun 2006
Posts: 822
Default

That's what I would do. Film and digital can't really handle the full range of exposures that the eye can see. Your basic exposure looked good, perhaps you have one where the rest is underexposed but the ballast lights are correctly exposed. It involves some masking, but you can combine the two images fairly easily, especially if you kept the same tripod postion throughout. As far as I am concerned, combining two exposures of the same scene to overcome the physical limitation of the medium is legitmate.

Michael Allen
a231pacific is offline   Reply With Quote
Old 10-25-2006, 08:25 PM   #6
fullreversal
Member
 
Join Date: Apr 2006
Location: Lawrence, KS
Posts: 34
Send a message via AIM to fullreversal Send a message via Yahoo to fullreversal
Default

Yeah, all shots were kept on the tripod, so we'll see what happens. However, like I was sayin' even the 15 sec exposures were blowing out the ballast...

How might I go about combining two images in such a way to get the detail back in the ballast? All I have at my disposal is Matlab, MSPhotoEditor, IRfanview, and MSPaint.

Thanks!

dk
fullreversal is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT. The time now is 04:18 PM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.