www.photomacrography.net :: View topic - Lee diffusers?
www.photomacrography.net Forum Index
An online community dedicated to the practices of photomacrography, close-up and macro photography, and photomicrography.
Photomacrography Front Page Amateurmicrography Front Page
Old Forums/Galleries
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Lee diffusers?

 
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Equipment Discussions
View previous topic :: View next topic  
Author Message
Pau
Site Admin


Joined: 20 Jan 2010
Posts: 4463
Location: Valencia, Spain

PostPosted: Wed Oct 03, 2018 11:19 am    Post subject: Lee diffusers? Reply with quote

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?
_________________
Pau
Back to top
View user's profile Send private message
jojm



Joined: 08 Jul 2007
Posts: 49
Location: France

PostPosted: Wed Oct 03, 2018 11:48 am    Post subject: Reply with quote

I use the "129 Heavy Frost" reference of LEE Filters for quite a long time now.
These sheets are enough strong to make them easy to transform in what forms you want: cones, cylinders, panels...
_________________
My mineral photos gallery on mindat.org
Back to top
View user's profile Send private message
Harald



Joined: 13 May 2011
Posts: 472
Location: Steinberg, Norway

PostPosted: Wed Oct 03, 2018 12:54 pm    Post subject: Reply with quote

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/viewtopic.php?t=38097

But no response
_________________
Kind Regards
Harald

Lier Fotoklubb / NSFF
AFIAP / CPS
BGF / GMV
http://www.500px.com/blender11
Back to top
View user's profile Send private message Visit poster's website
Smokedaddy



Joined: 07 Oct 2006
Posts: 1163
Location: Phoenix, Arizona

PostPosted: Wed Oct 03, 2018 2:00 pm    Post subject: Re: Lee diffusers? Reply with quote

Pau wrote:
Could you give me advice?

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.

-JW:

Back to top
View user's profile Send private message Visit poster's website
dmillard



Joined: 24 Oct 2006
Posts: 534
Location: Austin, Texas

PostPosted: Thu Oct 04, 2018 8:20 pm    Post subject: Reply with quote

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.

Back to top
View user's profile Send private message
Pau
Site Admin


Joined: 20 Jan 2010
Posts: 4463
Location: Valencia, Spain

PostPosted: Fri Oct 05, 2018 3:27 am    Post subject: Reply with quote

Thanks you very much for your info, I was pretty lost with the variety of Lee specifications.
I will order some gels, likely the 400 and maybe another one.
_________________
Pau
Back to top
View user's profile Send private message
JohnyM



Joined: 24 Dec 2013
Posts: 334

PostPosted: Fri Oct 05, 2018 6:54 am    Post subject: Reply with quote

Lee does offer a free sampler, it's amazing how many types they offer.
Back to top
View user's profile Send private message
cmagno



Joined: 08 Oct 2012
Posts: 34
Location: Porto, Portugal

PostPosted: Wed Oct 10, 2018 4:06 pm    Post subject: Reply with quote

Hi,

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.


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
Back to top
View user's profile Send private message
dmillard



Joined: 24 Oct 2006
Posts: 534
Location: Austin, Texas

PostPosted: Wed Oct 10, 2018 7:31 pm    Post subject: Reply with quote

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


Hello Carlos,

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
Back to top
View user's profile Send private message
Deanimator



Joined: 23 Oct 2012
Posts: 593
Location: Rocky River, Ohio, U.S.A.

PostPosted: Wed Oct 10, 2018 8:35 pm    Post subject: Reply with quote

Let me second the custom white balance. I always use one for Jansjos, regardless of the presence or type of diffusion.
Back to top
View user's profile Send private message
cmagno



Joined: 08 Oct 2012
Posts: 34
Location: Porto, Portugal

PostPosted: Fri Oct 12, 2018 5:31 am    Post subject: Reply with quote

dmillard wrote:

I'll post an image of one of the cylinders on an objective tomorrow morning, to show it more clearly.


I would be grateful. Thank you.


Carlos Magno
Back to top
View user's profile Send private message
dmillard



Joined: 24 Oct 2006
Posts: 534
Location: Austin, Texas

PostPosted: Sat Oct 13, 2018 12:46 pm    Post subject: Reply with quote

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?
Back to top
View user's profile Send private message
rjlittlefield
Site Admin


Joined: 01 Aug 2006
Posts: 19240
Location: Richland, Washington State, USA

PostPosted: Sat Oct 13, 2018 10:30 pm    Post subject: Reply with quote

dmillard wrote:
I have a question for anyone who may know - how can images be displayed side by side to economize on space?

Just separate the image tags with a space instead of newlines, for example
Code:

[img]http://www.photomacrography.net/forum/userpix/159_OlLee_1.jpg[/img] [img]http://www.photomacrography.net/forum/userpix/159_MitLee_1.jpg[/img]

Then either the images will be displayed either side-by-side, if the browser window width is large enough to do that, or the images will be displayed one above the other if not.

Like this... (Adjust your browser width to see the effect.)



--Rik
Back to top
View user's profile Send private message Visit poster's website
dmillard



Joined: 24 Oct 2006
Posts: 534
Location: Austin, Texas

PostPosted: Sun Oct 14, 2018 2:36 am    Post subject: Reply with quote

Thanks for the clarification Rik!
Back to top
View user's profile Send private message
cmagno



Joined: 08 Oct 2012
Posts: 34
Location: Porto, Portugal

PostPosted: Sun Oct 14, 2018 1:02 pm    Post subject: Reply with quote

Hi David,

dmillard wrote:

Please let me know if you have any questions - send me a PM if you like.


I have no further questions. The images detail the solution in a very clear way.
Many thanks again.

Best regards,
Carlos Magno
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Equipment Discussions All times are GMT - 7 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group