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-   -   Blurry exhaust issue. (http://www.railpictures.net/forums/showthread.php?t=17050)

Firefighter1019 04-24-2014 10:16 PM

Blurry exhaust issue.
 
So is there some trick how to NOT capture exhaust heat from trains? Or should I stick to trains standing still?

-Blurry
-Bad contrast


http://www.railpictures.net/images/d...1398366988.jpg

conrail1990 04-24-2014 10:23 PM

Not really, unless the locomotives aren't working at all.

troy12n 04-24-2014 10:23 PM

That reject's not due to exhaust heat, that's due to you not holding the camera still, or having too slow of a shutter speed. RP usually dont reject because of exhaust heat.

Firefighter1019 04-24-2014 10:48 PM

Quote:

Originally Posted by troy12n (Post 177902)
That reject's not due to exhaust heat, that's due to you not holding the camera still, or having too slow of a shutter speed. RP usually dont reject because of exhaust heat.

Going through my series of pics and right before this shot the train was pushing thick black exhasut. The blur is def from the heat because the after shots as it got closer are completely fine.

Sloppy crop of black smoke
https://www.flickr.com/photos/123313...3/13996548371/

conrail1990 04-24-2014 10:51 PM

Quote:

Originally Posted by Firefighter1019 (Post 177904)
Going through my series of pics and right before this shot the train was pushing thick black exhasut. The blur is def from the heat because the after shots as it got closer are completely fine.

Sloppy crop of black smoke
https://www.flickr.com/photos/123313...3/13996548371/

The image is still really soft. Look at the ballast and rocks on the right.

Firefighter1019 04-24-2014 10:55 PM

Im noticing the contrast issue now on my work computer. Think my laptop screen is either going or needs to be calibrated. Three different screens and all 3 make the image look completely different.

troy12n 04-24-2014 10:57 PM

Quote:

Originally Posted by Firefighter1019 (Post 177904)
Going through my series of pics and right before this shot the train was pushing thick black exhasut. The blur is def from the heat because the after shots as it got closer are completely fine.

Sloppy crop of black smoke
https://www.flickr.com/photos/123313...3/13996548371/

What shutter speed?

Give me the details on the shot: shutter speed, ISO, aperture... give us something to work with here

Like I said, RP dont usually reject for exhaust blur, and your photo is soft all around. Give me the data I am looking for, and I will tell you what you did wrong

coborn35 04-24-2014 11:16 PM

Loco exhaust is actually desirable in a photo.

Firefighter1019 04-24-2014 11:26 PM

Quote:

Originally Posted by troy12n (Post 177907)
What shutter speed?

Give me the details on the shot: shutter speed, ISO, aperture... give us something to work with here

Like I said, RP dont usually reject for exhaust blur, and your photo is soft all around. Give me the data I am looking for, and I will tell you what you did wrong

Ok so I was shooting on a tripod with sun behind me.

(Fstop f/9) (ISO-100) (shutter 1/200)

Remainder of my photos are completely fine. Started with the smoke puff maybe 15-20 feet later No blur no exhaust fumes just clear clean shot. Except for the lead engine being head on camera which is the reason I didnt submit that one.

Firefighter1019 04-24-2014 11:29 PM

Quote:

Originally Posted by coborn35 (Post 177908)
Loco exhaust is actually desirable in a photo.

Think I should crop and clean up and try the black exhaust shot then?

Mgoldman 04-24-2014 11:29 PM

Quote:

Originally Posted by Firefighter1019 (Post 177904)
Going through my series of pics and right before this shot the train was pushing thick black exhasut. The blur is def from the heat because the after shots as it got closer are completely fine.

The whole image appears to be soft even to the point of calling it blurry.

It's a legitimate rejection, one I'm surprised you can not see.

Heat distortion works when the distortion (blur) is where it's suppose to be, not the entire shot leaving not even the nose out of focus.

Just because closer shots are in focus does not mean the blur was from heat - it could be a depth of field issue or your focus point not being where it should've been to properly focus the engine when it was further back. Maybe it started to hunt? Maybe as the train came closer it came into focus. Either way, and even if it was heat distortion, it's not an appealing photo because of the blur.

/Mitch

Mgoldman 04-24-2014 11:30 PM

Quote:

Originally Posted by Firefighter1019 (Post 177910)
Think I should crop and clean up and try the black exhaust shot then?

There ya go.

/Mitch

conrail1990 04-24-2014 11:39 PM

Quote:

Originally Posted by Firefighter1019 (Post 177909)
(ISO-100) (shutter 1/200)

Well there's your problem. Try a higher shutter (1/640) with a higher ISO (400)

troy12n 04-24-2014 11:54 PM

Quote:

Originally Posted by Firefighter1019 (Post 177909)
Ok so I was shooting on a tripod with sun behind me.

(Fstop f/9) (ISO-100) (shutter 1/200)

Remainder of my photos are completely fine. Started with the smoke puff maybe 15-20 feet later No blur no exhaust fumes just clear clean shot. Except for the lead engine being head on camera which is the reason I didnt submit that one.

F8 and be there...

Try to strive for F8 and 1/400 as the slowest shutter speed for moving stuff. Up your ISO to get there, if you have any sort of modern DSLR, it should be able to handle it. I try to do 1/500 or faster when I can.

F9? Why? No need, F8 is sufficient for a shot like that
ISO 100? Why?
1/200? Why, too slow. That's motion blur, not exhaust blur.

ISO 200 or better, coupled with F8 will give you the ability to go for a faster shutter speed, which is what you need

Firefighter1019 04-25-2014 12:21 AM

Quote:

Originally Posted by troy12n (Post 177915)
F8 and be there...

Try to strive for F8 and 1/400 as the slowest shutter speed for moving stuff. Up your ISO to get there, if you have any sort of modern DSLR, it should be able to handle it. I try to do 1/500 or faster when I can.

F9? Why? No need, F8 is sufficient for a shot like that
ISO 100? Why?
1/200? Why, too slow. That's motion blur, not exhaust blur.

ISO 200 or better, coupled with F8 will give you the ability to go for a faster shutter speed, which is what you need

I had my settings higher but not what you suggested. My brother said he used my camera while I was scoping out a spot and he changed the settings on me by accident. Ha
But im gonna try and shoot what you suggest next time. Thanks

JimThias 04-25-2014 03:13 AM

Quote:

Originally Posted by Firefighter1019 (Post 177900)
So is there some trick how to NOT capture exhaust heat from trains? Or should I stick to trains standing still?

-Blurry
-Bad contrast


http://www.railpictures.net/images/d...1398366988.jpg

Should also be high sun and unlevel (leaning to the right).

Firefighter1019 05-03-2014 01:01 AM

Quote:

Originally Posted by JimThias (Post 177936)
Should also be high sun and unlevel (leaning to the right).

I gave up on this image. After looking at it I completely see ALL my issues with it. lol

Chris Z 05-03-2014 03:04 AM

Photoshop CC has shake reduction. It can somewhat fix blurry shots. I played around with your photo and came up with this. I'm still familiarizing myself with it and still not sure on how to get optimum results.

http://i1142.photobucket.com/albums/...ps253691fb.jpg

Chris Z


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