[-1.5] Perfect for my M11

[0.04 lb] This M diopter correction lens made all the difference for me. My Leica photos are now in focus again. And it is superbly Made in Germany with the Leica care we have come to expect.

[-1.5] My right side reading grass is +2.25. Before I have bought a Leica m diopter +2.00. Way too strong. This time I checked one +1.5 That is perfect for me. my sharpness image's Back!

[3 x 2.9 x 0.5"] Leica quality of course but now I am back hitting those great rangefinder shots. Leica users , sometimes you need to adjust the strength . Don't wait like it did!

[3 x 2.9 x 0.5"] I cannot stand using my glasses with a rangefinder. Defeats the entire purpose as i really cannot see the entire field of view which is one of the primary benefits to begin with. Of course, with a mild astigmatism, it's very hard to precisely determine when I'm focused. This little puppy, though expensive, is well worth the money. Every single cent in my opinion. The lenses are precisely as indicated and once you do the simple calc based off your prescription, bingo...you're in business. I've purchased two now...one for my M6 and one for M8 I just picked up. Made all the diff in the world.

[-1.5] If you use reading glasses, the eyepiece correction lens is more convenient. When installed, it allows faster rangefinder focusing than bifocals or readers, because it is always in place, where you left it.
Albeit, a bit spendy, Leica quality optics deliver clarity. Be sure your ophthalmologist confirms your unique correction to assure performance.

[3 x 2.9 x 0.5"] The +1.5 Diopter correction lens arrived. First opinions it is a tiny object with an eye watering price. It looks well made and the lens looks like it has some sort of coating.
It is also very thin so when it is attached to your camera it does not add any bulk to the eye lens. So what was the result, perfect. View finder remains nice and bright and the view finder image is clear and sharp.
Considering the initial price of the camera, Leica should just include a couple of corrections lens.
If your view finder image is not sharp just do yourself a favor and purchase the correction lens to make it right. You will not regret it.

[-1.5] Had cataract surgery and needed this for finder correction. Pricey but effective.

[0.04 lb] This diopter makes it possible for me to use the Leica M 10 Monochrom without glasses. It screws in over the eye piece. Make sure you screw it down tightly. The first time I used it I had the camera round my neck getting in and out of the car. At some point it became unscrewed and, fortunately, I found it in the car seat. Now I check it before each use to make sure it is securely screwed on tight. At $195 I think this is a bit over priced, but it's Leica, right?!

[0.04 lb] No need for glasses with this piece installed. It's very thin, you'll never know it's there.