Canon Dioptric Adjustment Lens E +0.5 (w/o Rubber Frame) #E+0.5
If you’ve turned the camera’s built-in dioptric adjustment dial to its extremes and the screen is still not in sharp focus, fear not. Canon offers a range of dioptric adjustment lenses that extend the adjustment range from +4 to -7 dioptres. The Dioptric Adjustment Lens E range has 9 different strengths and helps to provide near and far-sighted photographers with a clear viewfinder image without wearing spectacles. These lenses are available in graduations of 1 dioptre and provide the means to extend the range of adjustment built into the camera. The maximum lens available is marked -7 dioptres. It is, in fact, -4 dioptres, but it extends an EOS camera’s built in -3 dioptres range to -7. If you suspect that you may need an additional dioptric adjustment lens, it is worth checking with your optician and establishing the exact value that you require before ordering. Dioptric lenses are mounted onto Canon EOS DSLRs behind the viewfinder using a rubber frame that needs to be ordered in addition to the lens. These frames are designated Eb, Ec, Ef or Eg depending on the camera model. To ensure that you order the correct one, check the system map for your camera in the instruction manual. Also, note that it’s important not to confuse these rubber frames with the Eyecup Eb, Ec, Ef or Eg options that will come with your EOS DSLR camera as standard. Compatible with the following Canon SLR and DSLR cameras: EOS 1D MkII / 1D MkII N / 1Ds / 1Ds MkII / 1V / 1VHS / 5D / 5D MkII / 7D / 10D / 20D / 30D / 40D / 300D / 300V / 300X / 350D / 400D / 450D / 500D / 1000D / 3000N / 3000V
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