Fresnel Lens Screen 5×7" 7×5" for Large Format Film Plate Cameras -LONG FOCUS-

Fresnel Lens Screen 5x7

$62.59 Buy It Now or Best Offer
free,30-Day Returns

Seller Store burleycameras
(81) 100.0%,

Location: Hythe
Ships to: US,
Item: 315249917494

Return postage will be paid by:Buyer
Returns Accepted:Returns Accepted
After receiving the item, your buyer should cancel the purchase within:14 days
Return policy details:
Burley Cameras:Burley Cameras
Type:Fresnel
To Fit:Camera

This Fresnel Lens screen is for 5×7″ cameras that have a “full sized” 5×7″ ground glass. The actual size of the Fresnel measures 126x177mm. This is the special [Long Focus] version and is optimised for lenses 390mm and shorter. Ideal for use with portrait lenses or on 8×10″ to 5×7″ reducing backs when you wish to use the longer lenses of the 8×10″. For the standard version of the Half Plate Fresnel please see item number: 315249915165 The main photo and video shows the standard version of the Half Plate (similar to 5×7″) Fresnel matched with a 240mm lens on to demonstrate the general effect of the Fresnels. —————————————————————————————————————————————————– These Fresnel lenses are designed to be installed so that the grooved side of the Fresnel is touching the outside (shiny) side of your ground glass screen. This is not a focusing screen. My Fresnel lenses have been selected to provide the following benefits: Increase in apparent brightness and more even illumination over the frame. Corners are visible without needing to hunt around the frame, meaning time under the focusing cloth is better spent.Fine grooves. The fine groove width allows ease of focus through the Fresnel with a loupe.Protection of the ground glass. 1.8 to 2.0mm thick acrylic material.Each Fresnel comes supplied in a tin case. Ideal for you to store an emergency ground glass screen.I also stock the following sizes: 3 1/4 x 4 1/4” (Quarter Plate), 9x12cm, 4×5”, 4×5” Clipped Corners, 4 3/4 x 6 1/2” (Half Plate), 5×7”, 13x18cm, 6 1/2 x 8 1/2” (Whole Plate), 18x24cm and 8×10”, 10×12”, 8 1/2 x 15”. Half Plate, 5×7” and 13x18cm also available as special long focus types which are ideal for reducing backs (with longer focus lenses). I also hold a small stock of Fresnels to fit specific camera brands/models: Shen Hao 4×5″ (Clipped Corners), Graflex Speed/Crown Graphic 4×5”, RB Super D 4×5”, Graflex Home Portrait 5×7”, Argentum 5×7” Wide Angle, Argentum Long Focus 5×7”, as well as others. *N.B. Ideally, a Fresnel lens screen works best when the focal length of the Fresnel roughly matches the focal length of the lens being used. In the table (photo 3) I have added +20% to the focal length of the Fresnel to mark the upper limit of the optimum range. Lenses of a shorter focal length can of course be used, however the brightness-boosting effect will become less noticeable the wider the lens is. If you have a specific question, please get in touch!

Frequently Asked Questions About Fresnel Lens Screen 5×7″ 7×5″ for Large Format Film Plate Cameras -LONG FOCUS- in My Website

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Fresnel Lens Screen 5×7" 7×5" for Large Format Film Plate Cameras -LONG FOCUS-

Frequently Asked Questions About Fresnel Lens Screen 5×7″ 7×5″ for Large Format Film Plate Cameras -LONG FOCUS- in My Website

What are the best-selling Fresnel Lens Screen 5×7″ 7×5″ for Large Format Film Plate Cameras -LONG FOCUS- on 24hournewsupdates.com?

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