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stingOM
Joined: 27 Sep 2007
Posts: 3168
Location: Ireland
Expire: 2012-12-27
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 Posted: Thu Apr 29, 2010 6:22 pm Post subject: Cheap way to get a 10-stop glass filter |
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stingOM wrote:
http://www.talkphotography.co.uk/forums/showthread.php?t=151141
Some actual sample shots:
http://www.flickr.com/groups/weldingmaskglassfilter/
This will work almost like a hard grdauted ND filter
http://www.welduk.com/Details.asp?ProductID=117 |
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fatdeeman
Joined: 13 Jun 2009
Posts: 780
Location: UK
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| Posted: Thu Apr 29, 2010 8:29 pm Post subject: |
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fatdeeman wrote:
Looks good, I'll have to try this out!
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DSLR: Canon EOS 60D, Samsung GX-1S (Pentax *ist DS2)
Mirrorless: Panasonic DMC-G1, Sony NEX-5N
Compact: Canon PowerShot G3
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Wide: Tokina RMC 28mm F/2.8, Tamron Adaptall 2 28mm F/2.5, Sun Optical 28mm F/2.5, Super paragon 28mm F/2.8, Sigma filtermatic 24mm F/2.8, Fujinon 35mm F/2.8, Sun Optical 35mm F/2.8
Standard: Industar 50-2, Helios 44-2, Helios 44M, Helios 44M-3, Pentax-M 50mm F/1.4, Pentax-M 50mm F/1.7, Pentax-M 50mm F/2, Ricoh 50mm F/1.7, Chinon 50mm F/1.7
Tele: Pentacon 135mm F/2.8, Pentacon 200mm F/3.5, Optomax 200mm f/3.5, Sun Optical 135mm F/3.5, Soligor 350mm F/5.6
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Mirror: Falcon (Samyang) 800mm F/8, MTO-11CA 1000mm F/10, Tamron Adaptall 2 500mm F/8
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Nesster
Joined: 24 Apr 2008
Posts: 5883
Location: NJ, USA
Expire: 2014-02-20
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| Posted: Thu Apr 29, 2010 9:09 pm Post subject: |
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Nesster wrote:
A welding mask! now that's an idea!
I'm already thinking, a 1/2 field neutral filter...
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Himself
Joined: 01 Mar 2007
Posts: 3245
Location: Montreal
Expire: 2013-05-30
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| Posted: Thu Apr 29, 2010 9:14 pm Post subject: |
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Himself wrote:
Excellent!
I have a welding mask. |
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Lloydy
Joined: 02 Sep 2009
Posts: 7796
Location: Ironbridge. UK.
Expire: 2022-01-01
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| Posted: Thu Apr 29, 2010 10:01 pm Post subject: |
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Lloydy wrote:
And welding glass fits Cokin P Series filter holders as well.
There is also different grades of welding lens glass, from light designed to stop damage to peoples eyes as they pass by a welder, to the lenses for the welder themselves. And there are different grades depending on the type of welding.
Some welding lenses also come with smooth edges to reduce the risk of cutting yourself, but I've taken the sharp corners of them with a diamond sharpening 'stone' that I use for tools.
I've got everything set up to have a go, but haven't had the chance to try it yet.
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Arkku
Joined: 28 Feb 2007
Posts: 1416
Location: Helsinki, Finland
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| Posted: Thu Apr 29, 2010 11:37 pm Post subject: |
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Arkku wrote:
A potential problem with using this in the second slot of the filter holder might be that with long exposures daylight entering through the gap between the filter and the lens might be strong enough to “fog” the photo. It would probably take the sun shining directly on the filter from behind, though. |
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Schnauzer
Joined: 09 Apr 2008
Posts: 2155
Location: Maine, USA
Expire: 2012-03-08
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| Posted: Fri Apr 30, 2010 12:26 am Post subject: |
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Schnauzer wrote:
A friend of mine did the same thing a couple of years ago and it worked very well.
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martinsmith99
Joined: 31 Aug 2008
Posts: 6950
Location: S Glos, UK
Expire: 2013-11-18
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| Posted: Sat May 01, 2010 12:56 pm Post subject: |
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martinsmith99 wrote:
I'd be interested to see to what extent the glass softens the image.
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megalania
Joined: 05 Jun 2010
Posts: 4
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| Posted: Mon Jul 05, 2010 10:32 am Post subject: |
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megalania wrote:
I grabbed one of those welding glass panels but I haven't had a chance to try it yet. |
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martinsmith99
Joined: 31 Aug 2008
Posts: 6950
Location: S Glos, UK
Expire: 2013-11-18
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| Posted: Tue Jul 06, 2010 3:38 pm Post subject: |
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martinsmith99 wrote:
Post some samples when you try it out. My guess is results will not be so great.
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jacob12_1993
Joined: 20 May 2010
Posts: 58
Location: Stoke-on-Trent, England
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| Posted: Wed Jul 07, 2010 2:44 pm Post subject: |
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jacob12_1993 wrote:
I have one and glued the glass to an old filter, break the glass and superglue the ring, stops the light leaks which are very prevailant.
Jake
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