Does anyone know what this is?

[larry n.]

I am posting in this forum because it's a Canon gadget, but the target audience at this point in time might not be Canonophiles.

 

It seems to be some sort of filter square holder, but it's not clear how the filter will hold still in there. Any ideas?

 

http://www.bhphotovideo.com/c/product/122625-REG/Canon_2719A002__Gelatin_Filter_Holder.html

[sknowles]

You're looking at the lens side and the upper right corner suggests it's the opening to the slot to hold the filter.

[saskphotog]

It looks to me like a gelatin filter holder marketed by Canon.

 

http://www.great-landscape-photography.com/camera-filters.html

[paul_russell1]

Canon also make video lenses, looks like a matte box accessory

[Lou_Meluso]

This is a 3x3 gel filter holder. Back in the day, film photographers would keep a large collection of these gels to fine tune color films (esp transparency films) and provide basic contrast control in B&W work. They were thin, delicate filters that were easily damaged but worked great. Not a lot of uses for them in digital photography save the odd IR or UV blocking filter. By using various gel holders you could use the same gels for 35mm, medium and large format cameras. I still have a complete set.

[colin carron]

If you click on the 'enlarge' tab you will see it says Gelatin Filter Holder III on it.

[HenryUK]

According to Adorama, http://www.adorama.com/CAGFH3.html it's for attaching gelatin filters to EF lenses with an adapter.

 

Henry

[larry n.]

Has any of you used this?

 

I asked the fellow at the store (who had it in stock) but didn't know how the filter is attached.

 

There doesn't appear to be a way for the thin gelatin or polyster filter to be held in place.

[pmind]

Deja vu....

<P>

http://www.photo.net/filters-bags-tripods-accessories-forum/008cAQ

[larry n.]

Paul,

 

Thank you for digging up that thread, but the question remains unanswered. I set it aside years ago, but now I suddenly need filters again for a project, and nobody seems to know what filters to put in the darned thing.

[jason_hall5]

Look at page three of this link. It is PDF.

 

http://software.canon-europe.com/files/documents/EF_Lens_Work_Book_6_EN.pdf

 

It looks to me like a three inch square filter should drop right in the slot at the top. I am guess it is not made to stack them. You need the adaptor ring to fit your lens and a hood is also avaliable. It appears the hoods can be stacked or narrow Field of views.

 

Here are the filters on B&H

 

http://www.bhphotovideo.com/c/shop/5037/Gelatin_Filters_Kodak_Lee_Optiflex__3x3_Filters.html

 

Jason

[larry n.]

Jason--thank you very much for that.

 

The problem is that the gel/polyester filter I have is paper thin, whereas the slot in the holder is about half a

centimeter wide. I know it seems stupid, but I cannot find a way to hold the filter in place. (!) As far as I can tell,

there is no mechanism for squeezing the filter in place (like I've seen on some other holders). There is a knob, but I

know not what it does.

[jason_hall5]

You just need to make a frame to hold the Gel from card board of other heavy stock. That is how this is done in other systems. Such as here

 

http://www.bhphotovideo.com/c/product/186726-REG/LEE_Filters__Gel_Snap_3x3_4x4_Filter.html

 

or here

 

http://www.bhphotovideo.com/c/product/31161-REG/Linhof_002013_4x4_Folding_Gel_Filter.html

 

They are very expensive for what they are. A trip to a school supply store and some good ol' DIY and you are in.

 

Jason

[pmind]

Of course it's not exactly the same thing, but depending on your needs, you can get a Cokin system that will do a reasonable job for little money. Since the era of Photoshop began, they just about give them away on the used market. For a bit more, Lee Filters also offers a very well respected solution. Both of them take the guess work out of their usage.