Leica Diopter correction lens ATY7_T9FTG47

See more details at eBay - leicabuff »Reviews4.818 reviews5 star15 reviews4 star3 reviews3 star2 star1 starNo Need to CompensateApril 30, 2015I bought the +1.5 diopter for my Leica M3 SS because when wearing glasses, I can't see the 50mm frame lines. My prescription strength is +1.75 (far-sighted) and the closest diopter values are either +1.5 or +2. I was concerned about magnification so I went with the former. After placing the order, I learned that the eye piece has a -0.5 correction. After cursing under my breath, I decided not to jump the gun and cancel the order and go for the +2.0 version. I held out. The day delivery was expected, I decided to unscrew the view piece to give it a good cleaning, inside and out with a fine cloth and some cleaning solution. Out of curiosity, while I had my glasses on and the eye piece off the camera, I looked through the finder and it was blurry. So, it appears the -0.5 ... MoreI bought the +1.5 diopter for my Leica M3 SS because when wearing glasses, I can't see the 50mm frame lines. My prescription strength is +1.75 (far-sighted) and the closest diopter values are either +1.5 or +2. I was concerned about magnification so I went with the former. After placing the order, I learned that the eye piece has a -0.5 correction. After cursing under my breath, I decided not to jump the gun and cancel the order and go for the +2.0 version. I held out. The day delivery was expected, I decided to unscrew the view piece to give it a good cleaning, inside and out with a fine cloth and some cleaning solution. Out of curiosity, while I had my glasses on and the eye piece off the camera, I looked through the finder and it was blurry. So, it appears the -0.5 correction is functionally necessary for 20/20 vision, thus nullifying it's effect on diopters. I received the new diopter and screwed it into the stock eyepiece. The frame lines, the patch and the outside world were TACK SHARP. So, to me, it appears the correction value on the diopter is actual and compensating for the stock view piece is totally unnecessary. LessFNMphoto · Review provided by bhphotovideo.comAll Reviews