Canon Super Precision Matte Ef-S Interchangeable Focusing Screen

Canon Super Precision Matte Ef-S Interchangeable Focusing Screen

Canon Super Precision Matte Ef-S Interchangeable Focusing Screen

B&H # CAFSEFS40D MFR # 2379B001
Canon Super Precision Matte Ef-S Interchangeable Focusing Screen

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Product Highlights

  • For Lenses With Apertures of f/1.8-2.8
  • Manual Focusing Through Viewfinder
  • Precision Focusing in Low Light
  • Decreases Focus Around Subject
  • Installation Tool for Handling
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  • 1Description

This Ef series Super Precision Matte Ef-S Interchangeable Focusing Screen from Canon provides easier manual focusing through your viewfinder on subjects in low light when using lenses with a wide aperture between f/1.8 to f/2.8.

This "S" type focusing screen works by decreasing the focus of the slightly out-of-focus areas around your in-focus subject for a sharper contrast.

Compatible with Canon EOS 40D, 50D, and 60D
Not recommended for ordinary zoom lenses with maximum aperture slower than f/2.8 as the screen will appear dark and grainy
Focusing screens are delicate and should only be handled using the included gripping tool for installation
UPC: 013803086652
In the Box
Canon Super Precision Matte Ef-S Interchangeable Focusing Screen
  • Installation Tool
  • Table of Contents
    • 1Description
    Packaging Info
    Package Weight 0.15 lb
    Box Dimensions (LxWxH) 5.3 x 2.2 x 1.0"
    Super Precision Matte Ef-S Interchangeable Focusing Screen is rated 4.2 out of 5 by 32.
    Rated 3 out of 5 by from Great for fixed focal lengths/fast lenes Its super easy to install with the supplied tool The main difference with this screen is that the DOF is changed greatly, giving you a much better sense of final DOF instead of a artificially increased DOF from the micro lenses on the std. screen. Problem is that the screen, with the prism, do not transmit as much light, and so with F2.8, 3.5, 4, indoors, you can not see your subject. Its very dark and not worth it. - Awesome for landscape, macro, and portraits - Not so great for indoor weddings, flash, and other low light situations, or with F4 lenses.
    Date published: 2008-04-30
    Rated 5 out of 5 by from great for manual focus I use a lot of old, low light manual focus primes with fotodiox adapters (can't afford fast auto focus canon glass on a college budget). This is screen is perfect if you're in a situation like me. It was insanely difficult to be able to focus in low light situations with the stock screen. As soon as I installed the screen, manual focusing at say f/2 became a piece of cake. It's pretty easy to install, but the manual can be a bit confusing. There are plenty of videos on YouTube showing how to install the screen.
    Date published: 2009-11-11
    Rated 4 out of 5 by from Really works, but only with fast lenses After using the EF-S Focusing Screen for about a week and making a side-by-side comparison with the EF-A Screen (the one that comes with the camera) these are my observations: - With f/2.8 or faster lenses you can appreciate the improvement in the out-of-focus areas. Not so much with f/4.0 or slower lenses. However, the effect is much more pronounced with f/2.0 and faster lenses; at f/2.8 it isn't as dramatic as I expected, but still makes focusing easier anyways. - It really darkens your viewfinder. Besides being recommended for lenses not slower than f/2.8, I've find the screen usable up to a f/4.0 lens. At f/2.8 the viewfinder already gets sensibly darker than the EF-A screen which makes a bit harder to photograph in low light environments. At f/1.8 the darkening is almost negligible. - Works OK for macro with a f/2.8 lens, but will darken considerably with extension tubes. I can't say if it darkens less or more compared with the EF-A, but you can have a harder time trying to focus it the scene is already too dark. - Exchanging focusing screens is very easy and can be done in the field with the supplied tool. - After replacing the focusing screen, you must remember to change the corresponding custom function on the camera or your metering won't work correctly. I'm not giving it 5 stars because at f/2.8 the EF-S screen isn't that great (sadly, the most lens I own are f/2.8, despite f/2.8 being and officially supported aperture. For the time being, however, I'm keeping it installed on my camera because I'm not too fond of the EF-A (which I may replace with a EF-D screen just for landscapes at night/dawn, where a brighter viewfinder with grid lines will be more useful than the EF-S).
    Date published: 2008-07-31
    Rated 5 out of 5 by from Great if you have faster lenses I like to shoot with fast primes and this focusing screen is a big step up over the standard screen when manual focusing. However, if you have a slower zoom lens, the image in the viewfinder is definitely darker than with the standard screen. If you have mostly slower zoom and one or two fast primes, I would probably stick with the standard focusing screen, but if you are shooting almost exclusively with fast lenses, this screen is a great upgrade.
    Date published: 2009-04-14
    Rated 4 out of 5 by from It helps With my two Zeiss ZE lenses, I've been learning the art of manual focusing. I'm mainly into cinematography, but I like to snap the occasional still. This screen fits a 60D. It is easy to install, but it does require a bit of confidence and dexterity. It seems to help, but not by a lot. Back in the day, I had a similar screen on my OM-2 and that seemed to help a lot more. And well, my eyes are not quite as young anymore. Fortunately, for critical focusing, live view is awesome.
    Date published: 2011-07-23
    Rated 5 out of 5 by from No longer blind as a bat I have started using this focusing screen with my Canon 40D as the standard focusing screen wasn't able to get a good focal fix with my macro lens. I swapped out the original screen for this one and I have been able to get a sharper focus on my macro subjects. So far I haven't found a fault with this screen. I wish I had ordered this sooner, I am sure my photos would have been sharper.
    Date published: 2010-07-08
    Rated 5 out of 5 by from This is the cure to not seing sharpness This is the cure to not seing sharpness when you shoot. The improvement was so dramatic I stopped shooting some closing cyclist when I could see AI-servo was lagging. Normally I wouldn't catch this until I had loaded them into Lightroom. I expanded my DOF and got the shots. Everyone shooting F2.8 or faster needs one of these.
    Date published: 2009-06-30
    Rated 4 out of 5 by from When you need to manual focus accurately If you mainly use the AF mode on the lens, this focusing screen is probably not an important item. Helps me manual focus on the EF 24mm f/1.4L. Though not as bright as the standard focusing screen, it's bright enough for even the most dim lighting.
    Date published: 2008-07-08
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