DPChallenge: A Digital Photography Contest You are not logged in. (log in or register
 

DPChallenge Forums >> Challenge Suggestions >> 10-second challenge
Pages:  
Showing posts 51 - 57 of 57, (reverse)
AuthorThread
06/12/2014 04:32:02 PM · #51
Originally posted by armando_m:

did some experimenting yesterday,
even with the ND, 10 sec is a loooong time, for any daylight shooting and to darn short for night photos ... ?
we'll see


If you live near a welding supply house you can get 3 squares of welding glass for about $10 and make a very high ND filter, the sort that makes a 60 second exposure seem short at high noon in full sunlight. A short tutorial here though I do not find the need for the cloth and have stacked up 3 pieces of glass for a silly high ND number to empty freeways of traffic and remove all but sidewalk sitters from urban landscapes, without getting leakage from the sides which the cloth would help, if it was an issue for you. The glass is not really color balanced so you are limited to B&W or greish color tones with spots of color since the welding glass comes in green and bronze, try to get some of each so you can try to save some colors.

Message edited by author 2014-06-12 16:32:39.
06/12/2014 04:40:48 PM · #52
Originally posted by armando_m:

did some experimenting yesterday,
even with the ND, 10 sec is a loooong time, for any daylight shooting and to darn short for night photos ... ?
we'll see


It's not too short for night photos...I do it all the time. Just crank up the ISO and bit.
06/12/2014 04:43:49 PM · #53
Originally posted by BrennanOB:

Originally posted by armando_m:

did some experimenting yesterday,
even with the ND, 10 sec is a loooong time, for any daylight shooting and to darn short for night photos ... ?
we'll see


If you live near a welding supply house you can get 3 squares of welding glass for about $10 and make a very high ND filter, the sort that makes a 60 second exposure seem short at high noon in full sunlight. A short tutorial here though I do not find the need for the cloth and have stacked up 3 pieces of glass for a silly high ND number to empty freeways of traffic and remove all but sidewalk sitters from urban landscapes, without getting leakage from the sides which the cloth would help, if it was an issue for you. The glass is not really color balanced so you are limited to B&W or greish color tones with spots of color since the welding glass comes in green and bronze, try to get some of each so you can try to save some colors.

nice link , thanks !!
06/12/2014 04:50:41 PM · #54
I have always found it an interesting, and frequently revealing, exercise to process an image out of what appears to be a pure-white total overexposure. It's amazing how much beauty will sometimes lurk at the heart of an epic fail.
06/12/2014 08:52:47 PM · #55
Originally posted by Bear_Music:

I have always found it an interesting, and frequently revealing, exercise to process an image out of what appears to be a pure-white total overexposure. It's amazing how much beauty will sometimes lurk at the heart of an epic fail.

FWIW I've done the same with what looks like an underexposed black rectangle ...
06/13/2014 11:00:20 AM · #56
As mentioned, welding glass works well for long exposure in daylight.

Her's a photo of a systme i pulled together using readily available items.



I have a range of glass from 3 to 10 (the higher the number, the darker it is), so i can stack them to get the rifht amount of light reduction. Mine do give a greenish tinge, but in Advanced you can adjust to correct. I bought mine through either McMaster-Carr or Grainger for thise in the US.

The foam is the more stiff but flexible type that is used to in packing for electronics, etc. i have pieces cut with different sized holes for my different lens diameters, too. I might have bought this from McMaster as well.

There is some vignetting, so take that into account, too.

These are great things to have on hand.

06/13/2014 11:05:35 AM · #57
Originally posted by Bear_Music:

I have always found it an interesting, and frequently revealing, exercise to process an image out of what appears to be a pure-white total overexposure. It's amazing how much beauty will sometimes lurk at the heart of an epic fail.

If you have an example handy I would love to see it. I have been amazed in the past at what you have been able to coax out of an image I would have passed over as salvageable.
Pages:  
Current Server Time: 07/24/2025 09:41:58 PM

Please log in or register to post to the forums.


Home - Challenges - Community - League - Photos - Cameras - Lenses - Learn - Help - Terms of Use - Privacy - Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 07/24/2025 09:41:58 PM EDT.