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Canon dioptric correction lens EG

Canon dioptric correction lens EG

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(Code: A319 -3)
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Change your standard eyecup and remove the need to wear your glasses with a dioptric lens. Corrects minor eyesight defects and available in seven different strengths.

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£ 29.99

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  1. EG frames are fitted with release grips which must be pressed before the frame can be removed from the camera. This is an improvement on the Adjustment Lens E which slides on and off the viewfinder with no lock.
  2. Designed for the EOS-1D Mark III, 1D Mark IV, IDs Mark III 1D X, 1D X Mark II, 5D Mark III, 5D Mark IV, 5DS, 5DS R, 7D and 7D Mark II and available in 7 strengths: 4, 3, 2, 0, +1,+2 and +3 dioptres. Each lens comes complete with a rubber frame and is ready to attach directly to the viewfinder eyepiece. The lens slips over the existing eyepiece mount so that you can view the image through the viewfinder without needing to wear your glasses (corrects minor defects only).

We covered dioptric lenses in the 'Eyes Right' article in the January-March 2011 issue:

Dioptric correction lenses date back to the days of film cameras. Apart from the EOS 1, 1N and 1V, these cameras do not have built-in correction. Instead, Canon produces a range of adjustment lenses which slip over the viewfinder eyepiece. The lenses are available in different strengths, from -4 dioptres (for short-sightedness) to +3 (for long-sightedness).

All EOS viewfinders, for digital and film cameras, have a built-in correction of -1 dioptre. This is because many people either suffer from slight short-sightedness, or will do in the future. If you have good eyesight the -1 dioptre lens should not cause any problems. Your eyes will automatically adjust to take account of the built-in lens, and you should not even notice.

There are three ranges of Canon dioptric adjustment lenses: Adjustment Lens E, Adjustment Lens Eg and Adjustment Lens Ed.

You will notice that there is no -1 dioptre lens in any of the ranges. This is because the designation is not the power of the dioptric lens itself, but the power when it is attached to the viewfinder.
Customer reviews
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Strength : -4 dioptres
Very pleased with this.
Liam R.
Shopping Satisfaction
Strength : -3 dioptres
Exactly what I needed.
Chris K.
Shopping Satisfaction
Strength : -4 dioptres
Very good, used since eyesight faded, unfortunately I broke the glass and had to source a replacement.
Peter R.
Shopping Satisfaction
Strength : +2 dioptres
The Canon dioptric correction lens is as one would expect well made and snaps into place tightly so does not come off accidentally which has been the case in the past, the correction wheel is a little tricky to adjust due to it being tucked away to avoid being accidentally turned, thus, being out of focus but well worth not having to wear glasses when looking through the viewfinder, absolutely tack sharp.
Leslie W.
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