khacken
Contributor
anyone know where to get a red filter for the PT-033 case?
Red Filter for PT-033
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I've looked and looked also. I have a PT021 and can't even find the size lens I need. Is it 46mm also?
Just measure the inside diameter of the port in mm. There are adapters to fit a number of different port sizes as well that slip over the outside.
Jack
Jack
Charlie99
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I've tried a red filter (Hoya Red (25A) and wasn't happy with the result. People that have a filter more like a magenta filter or things like the "Magic Filter" report better results.
A standard 46mm lens fit my PT-016 housing.
A standard 46mm lens fit my PT-016 housing.
Hello , My name is Kevin . I was looking at the Hoya 25A . Can I ask what situation a red filter would be beneficial ? I just acquired a strobe ( YS - 60 TTL / S ) and was told the strobe would do the job , I was thinking the red filter might be good in the 0 - 8 meter range , top of the coral head or perhaps in shallow waters , were the " strange creatures dwell " in Lembeh or the assorted piers . The Hoya was cheap , but you get what you paid for . Any info and red lenses that actually deliver results . What was your result with the Hoya 25 A Thanks Kevin
Charlie99
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I have a point and shoot Olympus Stylus 400. Its main problems as an underwater camera is 1) no manual white balance, and 2) no manual focus.
Looking at histograms of available light photos in the 30 to 100' range in clear Maui waters, it was not unusual for the blue and green to have fullscale range (0 to 255) but the red values to only range from 0 to about 30. In other words, very little red.
The red filter was an attempt to bring up the red levels by reducing the blue and green. What happened is that the red filter cut too much of the available blue and green light, making it difficult for the camera to focus. In addition, the dramatically reduced light levels also forced the camera to both go to max aperture and slow down the shutter so much that both camera shake and subject movement caused blurring.
http://www.magic-filters.com/ is a company that makes filters that aren't pure red but are more orange. They also don't have as much light filtering as does the 25A filter. I haven't tried them yet, but others on SB have reported them as working well.
Looking at histograms of available light photos in the 30 to 100' range in clear Maui waters, it was not unusual for the blue and green to have fullscale range (0 to 255) but the red values to only range from 0 to about 30. In other words, very little red.
The red filter was an attempt to bring up the red levels by reducing the blue and green. What happened is that the red filter cut too much of the available blue and green light, making it difficult for the camera to focus. In addition, the dramatically reduced light levels also forced the camera to both go to max aperture and slow down the shutter so much that both camera shake and subject movement caused blurring.
http://www.magic-filters.com/ is a company that makes filters that aren't pure red but are more orange. They also don't have as much light filtering as does the 25A filter. I haven't tried them yet, but others on SB have reported them as working well.
I can highly recommend Alex's Magic Filters. I've had the best luck with them in the shallows from 8ft to about 15ft max. in ambient light, no strobes. It adds just the right about of red to the photos to make the colors look natural. However, the drawback is if it's a bright sunny day, the water is exceptionally clear or if I'm just shallower than I thought, the photos will have a pink cast to them. Red filters have their place but they definitely have their own set of issues and aren't a cure all for all photos. You just have to learn it's limits and allowances.
The PT-033 takes a 40.5mm filter which we don't have.
I've used the Magic filters and had good results, the only issue is that they are an inside mount and you are devoting the whole dive for shallow water shooting. It's nice to have something that you can switch on and off as you want to use a strobe.
Jack
I've used the Magic filters and had good results, the only issue is that they are an inside mount and you are devoting the whole dive for shallow water shooting. It's nice to have something that you can switch on and off as you want to use a strobe.
Jack
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