Which external viewfinders are best for wide-angle Leica lenses?

Seconding the recommendation above. Framing on an M6 with a 21mm lens is basically like shooting blind without a finder lol. Since u mentioned the Zeiss 21mm ZM Viewfinder, I actually looked into the specs recently cuz I also wear glasses and eye relief is a dealbreaker. It has a huge exit pupil which is great for seeing the whole frame, but it's definitely a bit of a chunky unit. Here is how I’d break down the options I've seen: * Zeiss 21mm ZM Viewfinder: Super clear and basically zero distortion. Pros: incredible optics. Cons: it’s huge and might feel unbalanced on an M6.
* Leica 21mm Plastic Viewfinder 12002: This is the modern plastic one. Pros: very lightweight and doesn't snag on bags. Cons: some say the plastic feels a bit 'cheap' compared to metal finders.
* TTArtisan 21mm Optical Viewfinder: A budget alternative. Pros: super cheap. Cons: way more barrel distortion and the glass isn't as bright iirc. Honestly, parallax correction is kinda niche? Unless ur doing super close-up work, it probably wont change ur daily shooting much. I’d prioritize that clear Zeiss glass if u can handle the size!! gl!

I've tried many finders over the years and honestly, you dont gotta break the bank. I once lost an expensive one, so now I stick to value picks: - TTArtisan 21mm Optical Viewfinder: Basically the budget king. Metal, clear, and decent for glasses.
- Avenon 21mm Viewfinder: Great vintage metal pick if found used. Ngl, Zeiss is beaut but way pricey. Parallax isnt a big deal for wide shots anyway. Peace.

Oh man, I totally feel u on this—framing a 21mm shot on an M6 without a finder is basically just guessing and praying lol. Since you wear glasses, eye relief is lowkey gonna be your biggest hurdle. I've rotated through a few of these over the years and here is how I think they stack up: * Zeiss 21mm ZM Viewfinder: Honestly, this is the gold standard for clarity. It has basically zero distortion and it's HUGE, which is great for glasses, but be careful cuz it's bulky and might feel a bit top-heavy on an M6.
* Voigtlander 21mm Metal Brightline Viewfinder: This is the sweet spot imo. It's super bright and way cheaper than Leica. The metal build is solid, but make sure to put some tape on the eyepiece so you dont scratch your lenses!
* Leica 21mm Bright-Line Viewfinder 12024: It looks the best, but I personally found the eye relief a bit tight for glasses compared to the Zeiss. Tbh, I wouldnt sweat the parallax correction too much for wide-angle stuff unless youre doing tight portraits (which is rare at 21mm anyway). If you want that "crystal clear" look, go Zeiss, but the Voigtlander is the best bang for your buck. Good luck!

Saw this thread earlier today but just getting a chance to weigh in. Unfortunately, most modern finders just arent as good as expected for the price point. I've had issues with the coatings on the newer Leica plastic finders peeling off after just a few years of use, which is pretty disappointing given the heritage. Since you are struggling with glasses, here are a couple of alternatives that havent been mentioned yet:

• Ricoh GV-1 External Viewfinder. It is technically designed for their digital series, but it fits the M shoe perfectly. It has dedicated 21mm and 28mm lines. It is mostly plastic so it wont wreck your glasses, tho the build quality feels a bit lightweight compared to the M6.
• Sigma VF-11 External Optical Viewfinder. This is specifically for a 21mm equivalent field of view. It is tiny and simple. It isnt a prestige brand for Leica users, but it gets the job done without the bulk. You should check out the comparison tables on CameraQuest. They have been documenting these finders for decades and they actually list the physical eye relief distance, which is way more helpful than the marketing fluff brands usually put out. Just a heads up that any zoom finder, like the Leica 12013 M Series Wide Angle Finder, is gonna be huge and will probably block your shutter speed dial.

Just saw this thread and wanted to chime in... Curious about one thing: what kind of glasses are we talking about? Like, thin high-index ones or big chunky plastic frames? I'm asking because I once used a vintage metal finder on my Leica M6 and LITERALLY didn't realize the metal rim was grinding against my specs until I saw the permanent swirl marks later. It was a pricey mistake, so now I'm a stickler for eye safety. From a technical and reliability perspective, here is what I’ve found: 1. **Eye Relief and Buffering:** The Zeiss 21mm ZM Viewfinder is basically the gold standard for glasses wearers. It has a massive rear element and a rubberized ring that acts as a buffer. It’s way safer for your glasses than the un-rimmed metal versions.
2. **Mounting Security:** Some finders like the Ricoh GV-1 21/28mm Viewfinder are super light but can sometimes slip out of the shoe if they get snagged. The Zeiss has a much tighter tolerance and feels secure enough that it won't just slide off when youre walking.
3. **Parallax Logic:** Honestly, unless you're shooting closer than 1.5m, parallax correction is mostly just another thing to worry about accidentally bumping. For 21mm shots, it’s usually fine to just aim and shoot. Basically, if you value your glasses, dont go for the older all-metal stuff!

Honestly, if you're worried about your glasses getting wrecked, you don't always need to shell out for a "professional" Leica solution. I’ve gone the DIY route plenty of times—like, you can just get some tiny rubber O-rings from a hardware store and carefully glue them to the rim of a metal finder. It sounds a bit sketchy, but it works perfectly and saves your specs from those nasty swirl marks!! If you want to step away from the usual expensive options everyone recommends, maybe check these out:
- Ricoh GV-1 External Viewfinder: It’s technically meant for the digital GR series, but it has 21mm and 28mm lines. The eyepiece is basically all plastic and rubber, so it’s very glasses-friendly right out of the box.
- KMZ Universal Turret Viewfinder: A bit of a vintage "project" finder. You might need to do some DIY cleaning if you find one with haze (which is common), but they have a manual parallax dial you can adjust. I'm always a bit uncertain if the parallax on the KMZ is perfectly calibrated for the Leica shoe height, but for 21mm wide-angle shots, you usually have enough wiggle room that it doesn't matter much. Plus, if it gets dusty inside, it's way easier to service yourself than a modern sealed unit.

> Since I wear glasses, eye relief is a huge deal for me; I don’t want to be scratching my lenses or pressing my face against the camera just to see the corners. It is honestly exhausting how few brands actually consider us shooters who wear glasses. I have spent far too much on finders that claim to have generous eye relief only to find the edges blurry or the metal rims acting like sandpaper on my expensive specs. It is truly disappointing that even after decades, the premium brands still havent figured out a basic rubber gasket. Honestly, most of these high-end options have been a letdown for me personally. If you are tired of the mainstream disappointments, you might look into the Ricoh GV-1 21mm and 28mm External Viewfinder. It is meant for the GR series but fits the M6 hot shoe perfectly. The plastic build feels a bit cheap compared to brass, but it is much softer on your glasses and surprisingly bright. I have basically given up on finding a perfect out-of-the-box solution, so I usually end up using tiny bits of Self-Adhesive Miniature Felt Pads to cushion the contact points. It looks a bit messy and unprofessional, but it is the only way I have found to keep my glasses safe. It is just frustrating that we have to resort to these home-made fixes for gear that costs this much...