KatzEye™ Focusing Screen for theCanon® 40D, 50D & 60D
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The KatzEye™ focusing screen for the Canon 40D, 50D and 60D is a laser matte with a split prism circle and a microprism collar, very similar to the one you would find in many classic SLRs. It is a direct replacement with no modifications required to the camera at all. The split prism with microprism ring is a great combination for focusing in a variety of situations. The screen will have NO effect on the functioning of the autofocus sensors of the camera and the AF point indicators will continue to function as normal.
Canon 40D/50D/60D Viewfinder with Split Prism & Microprism Ring (Simulated)
The KatzEye™ focusing screen for the Canon 40D/50D/60D has no effect on existing viewfinder information. All active viewfinder information, including the focusing points will still function normally.
Live View mode continues to function normally with the installation of the KatzEye screen. No changes will occur.
The KatzEye™ focusing screen for the Canon 40D/50D/60D has little to no effect on light metering in Evaluative or Center Weighted metering modes. Partial and Spot metering modes are somewhat more affected, depending on conditions. We recommend use of the Ef-A selection in the camera’s focusing screen type custom function for most accurate results. Please see your owner’s manual for instructions on adjusting the custom function settings. Detailed test results for each of the four metering modes are as follows*:
* Note: Metering test results presented are based on testing of the 40D model. While results are expected to be similar for the 50D and 60D, users of these models are strongly encouraged to take a test shot and check the histogram before beginning any critical shooting.
The KatzEye™ focusing screen for the Canon 40D/50D/60D is available exclusively in the KatzEye™ “Plus” version. The “Plus” version has a unique prism design which delays the prism ‘blackout’ phenomenon until well after f11. Ordinary split prisms will black out by about f5.6, rendering them difficult to use with slower zoom lenses, teleconverters, or in extreme macro photography... but not the KatzEye™ “Plus”. More information about the KatzEye™ “Plus” can be found here.
The KatzEye™ screen is a direct replacement for the original and no modifications to the camera are required. Since the Canon 40D/50D/60D focusing screens are designed to be user changeable, the process is quite straightforward and a suitable installation tool will be included with your purchase. Nonetheless, if you are not confident in your vision or dexterity, professional installation might still be advisable. For those users installing the screen themselves, a detailed installation guide, with plenty of high resolution photos, is available for download here.
If you don’t feel confident installing the KatzEye screen, your local camera shop should be able to complete the installation for you. Since the KatzEye screen is a direct replacement for the original, any competent shop should be able to handle the installation and the original screen can be reinstalled at any time, should you so desire. If you want us to install it at KatzEye Optics, we would be happy to do so. Please see the Installation Service page to order installation with your focusing screen. Installation service at KatzEye™ Optics costs $65, plus the cost of return shipping of your camera.
The standard Canon 40D/50D/60D screen (type Ef-A) is optimized for automatic focusing. As such, it is very bright, but it gives a very poor indication of DOF and has very little ‘snap’ (indication of when focus is achieved). The KatzEye™ screen is optimized for manual focus applications and has a much improved matte surface. The matte surface on the KatzEye™ screen is designed to give excellent DOF indication and a very sharp ‘snap’. However, because of this, the standard KatzEye™ screen for the 40D/50D/60D is slightly darker than the standard Canon Ef-A screen, particularly at smaller apertures. If viewfinder brightness is a concern for you, consider the optional OptiBrite enhancement. With the OptiBrite treatment, the brightness of the KatzEye™ screen is comparable to the standard Canon Ef-A screen. The OptiBrite treatment affects only the matte portion of the screen; it has no effect on the prism and the OptiBrite treatment will have no significant effect on light metering in the 40D/50D/60D. Click here for more information about the OptiBrite treatment.
All KatzEye™ focusing screens are available with optional guide patterns to aid in proper composition. We have a variety of standard patterns of grid lines and crop guides available or we can provide a custom pattern to your design. Click here for more information about our composition aid patterns.
All KatzEye™ focusing screens are custom made to order and are usually not available to ship the day the order is placed. As of 05/18/2013 production is running normally and most orders will be shipped in 4-6 business days from the date they were placed.