Lee diffusers?
Moderators: rjlittlefield, ChrisR, Chris S., Pau
Lee diffusers?
In my seldom high magnification macro work I diffuse the light with ping pong balls or paper but both alter the color temperature towards red, not very convenient with the already low temperature of Jansjo LEDs and of my partially burned fiber optic guide.
I want a material good to make cylinders and cones with good diffusion properties, not altering much the color and no eating so much light as polystyrene cups.
A good option seems Lee diffusion sheets, but I have no idea of what kind of them could be convenient for macro.
Could you give me advice?
I want a material good to make cylinders and cones with good diffusion properties, not altering much the color and no eating so much light as polystyrene cups.
A good option seems Lee diffusion sheets, but I have no idea of what kind of them could be convenient for macro.
Could you give me advice?
Pau
Hi there,
I´ve just tested the LeeLux #400, works great and they are neutral to color temp I think.
But then again, I set custom white balance with an grey card.
I made an post about it here:
http://www.photomacrography.net/forum/v ... hp?t=38097
But no response
I´ve just tested the LeeLux #400, works great and they are neutral to color temp I think.
But then again, I set custom white balance with an grey card.
I made an post about it here:
http://www.photomacrography.net/forum/v ... hp?t=38097
But no response
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Re: Lee diffusers?
Advice sure. <g> YOU and just about everyone else here has a lot more experience than I do with lighting but I just bought this to experiment with.Pau wrote:Could you give me advice?
-JW:
I use a variety of Lee filters, primarily as cylinders on my Mitutoyo and Olympus objectives. I often combine them with an inner layer of 214 Tough Spun to further cut interior reflections, or selectively mask them with black cardstock. Like Harald, I have found them to be very color neutral, but I still do a custom white balance on anything important.
Hi,
Thanks in advance,
Carlos Magno
On the LEE website the demonstrations seem to suggest that the sheets are very thin and therefore difficult to build a stable cylinder. Is the thickness of the sheet an option when buying the product?dmillard wrote:I use a variety of Lee filters, primarily as cylinders on my Mitutoyo and Olympus objectives. I often combine them with an inner layer of 214 Tough Spun to further cut interior reflections, or selectively mask them with black cardstock. Like Harald, I have found them to be very color neutral, but I still do a custom white balance on anything important.
Thanks in advance,
Carlos Magno
Hello Carlos,cmagno wrote:
On the LEE website the demonstrations seem to suggest that the sheets are very thin and therefore difficult to build a stable cylinder. Is the thickness of the sheet an option when buying the product?
Thanks in advance,
Carlos Magno
These filters bend easily as flat sheets, but form very rigid cylinders, especially at the sizes at which I use them. The Leelux 400 is especially robust, but even the thinner filters work well when they have been rolled into tubes and secured with adhesive tape. On the Mitutoyo objectives, the cylinders are only a little over 32mm in diameter, and approximately 44mm long, with about half of that length slid over the barrel of the objective. On the Olympus objectives, the cylinders are only about 26mm in diameter. Additionally, they are not subjected to any stresses that would deform them. I use the same ones repeatedly with no issue.
I'll post an image of one of the cylinders on an objective tomorrow morning, to show it more clearly.
Best regards,
David
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Hello Carlos,
I just took a couple of quick pictures showing cylinders of Lee filter material on a Mitutoyo and an Olympus objective. I think you can see that they are in little danger of deformation. I like to write on them with an extra fine point Sharpie marker so I don't have to waste time rummaging through them. Please let me know if you have any questions - send me a PM if you like.
Best regards,
David
And I have a question for anyone who may know - how can images be displayed side by side to economize on space?
I just took a couple of quick pictures showing cylinders of Lee filter material on a Mitutoyo and an Olympus objective. I think you can see that they are in little danger of deformation. I like to write on them with an extra fine point Sharpie marker so I don't have to waste time rummaging through them. Please let me know if you have any questions - send me a PM if you like.
Best regards,
David
And I have a question for anyone who may know - how can images be displayed side by side to economize on space?
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Just separate the image tags with a space instead of newlines, for exampledmillard wrote:I have a question for anyone who may know - how can images be displayed side by side to economize on space?
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[img]http://www.photomacrography.net/forum/userpix/159_OlLee_1.jpg[/img] [img]http://www.photomacrography.net/forum/userpix/159_MitLee_1.jpg[/img]
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--Rik