Thypoch Simera Simera 28mm f/1.4
With a 14-blade diaphragm and floating element design, this 28mm f/1.4 lens maintains sharpness from infinity down to its 0.4m close focus while producing creamy bokeh. A vintage-inspired red-dot depth-of-field scale and switchable click/declick aperture ring adapt it seamlessly to both stills and video, and its 330g weight adds little burden to a rangefinder setup. It’s ideal for Leica M street photographers who want a fast wide-angle prime for intimate environmental portraits with smooth focus fall-off.
Bu Lens hakkında
With a 14-blade diaphragm and floating element design, this 28mm f/1.4 lens maintains sharpness from infinity down to its 0.4m close focus while producing creamy bokeh. A vintage-inspired red-dot depth-of-field scale and switchable click/declick aperture ring adapt it seamlessly to both stills and video, and its 330g weight adds little burden to a rangefinder setup. It’s ideal for Leica M street photographers who want a fast wide-angle prime for intimate environmental portraits with smooth focus fall-off.
- Focal length 28mm
- Max aperture 1.4
- Mount Leica M
- Stabilization
- Weight g 330
- Af type Manual Focus
- Lens type prime
The 30-Second Version
The Thypoch Simera 28mm f/1.4 delivers dreamy bokeh (top 2% in our database) and cinematic rendering in a compact manual focus package. It's a joy to use on M-mount bodies, but you'll give up autofocus, EXIF data, and weather sealing. At sale prices around $400, it's a fantastic deal for character-first photographers.
Overview
The Thypoch Simera 28mm f/1.4 is a manual focus prime built for Leica M shooters who care more about character than tech specs. It pairs a fast, bright f/1.4 aperture with a complex 14-blade diaphragm, churning out some of the creamiest bokeh we've tested in this focal length—seriously, it landed in the 98th percentile of our database. All that glass is packed into a compact 330g body with a vintage-inspired focus tab and a declickable aperture ring that film shooters and hybrid video folks will immediately appreciate.
But there are trade-offs. This lens has zero electronic contacts, so your camera won't record aperture or lens info in EXIF, and focus-peaking is the only assistance you'll get. Weather sealing is absent, and corners at f/1.4 are soft enough to remind you this isn't a clinical optic. Still, if you're after a 28mm with real personality and a price that varies wildly (we've seen it as low as $399), it's a compelling choice.
Performance
The Simera is all about that bokeh. With 14 aperture blades, out-of-focus areas are buttery smooth and highlights stay round, giving portraits and close-ups a genuine 3D pop. Center sharpness is strong at f/1.4, but the corners need stopping down to f/2.8 before they catch up. Chromatic aberration is well controlled, and the floating element design keeps close-focus performance respectable. Our optical score lands at a middling 62nd percentile, which makes sense—this lens prioritizes rendering over absolute sharpness. The spec sheet mentions stabilization, but we couldn't confirm any meaningful effect; honestly, f/1.4 handles low light so well you probably won't miss it.
Pros & Cons
Pros
- Creamy, rounded bokeh thanks to its 14-blade aperture (top 2% of all lenses we've tested). 99th
- Fast f/1.4 aperture pairs beautifully with the 28mm focal length for environmental portraits. 95th
- Smooth, tactile focus tab with declickable aperture ring works great for video and photo. 80th
- Compact and relatively light at 330g, balancing well on M bodies. 67th
Cons
- Manual focus only—no autofocus assist beyond focus peaking on most cameras. 14th
- No weather sealing means you'll need to be cautious in rain or dusty environments. 34th
- No electronic contacts, so EXIF data like aperture and lens info is missing.
- Corner sharpness at f/1.4 is soft; you'll need to stop down to f/2.8 for critical sharpness.
The Word on the Street
Specifications
Full Specifications
Optics
| Type | prime |
| Focal Length Min | 28 |
| Focal Length Max | 28 |
| Elements | 11 |
| Groups | 7 |
| Aspherical Elements | 1 |
| ED Elements | 1 |
| Coating | multi-layer coating |
Aperture
| Max Aperture | 1.4 |
| Min Aperture | 1.4 |
| Constant | Yes |
| Diaphragm Blades | 14 |
Build
| Mount | Leica M |
| Format | full-frame |
| Weather Sealed | No |
| Weight | 0.3 kg / 0.7 lbs |
| Filter Thread | 49 |
AF & Stabilization
| AF Type | Manual Focus |
| Stabilization | Yes |
Focus
| Min Focus Distance | 400 |
Value & Pricing
Pricing for the Simera is unpredictable. We've seen it listed anywhere from $399 to $817 across different dealers. At the low end, it's a borderline steal for the build quality and unique rendering. Up near $800, it's a tougher sell—used Leica or Voigtländer glass with electronic contacts starts to look tempting. If you shop around and catch a sale, targeting the $400-$500 range makes this lens feel like a real find. No single retailer consistently has the best price, so keep an eye on stock and don't overpay.
vs Competition
The Simera doesn't really compete with the AF zooms in our database like the Canon RF 28-70mm f/2.8 or the Tamron 17-70mm f/2.8—those are aimed at a completely different audience. For M‑mount shooters, the closest rival is the Voigtländer Ultron 28mm f/2. That lens is slower but sharper across the entire frame and includes electronic contacts for EXIF data. The Simera gives you a full extra stop of light and that unique 14-blade bokeh, but trades away modern conveniences. On Sony E-mount, the Viltrox Air 15mm f/1.7 offers a fast wide prime with autofocus, but it's not a 28mm and feels very different in hand. The Simera is for the analog-minded photographer who values rendering and tactile experience over specs.
| Spec | Thypoch Simera Simera 28mm f/1.4 | Sigma Contemporary 16-300mm F3.5-6.7 DC OS | Canon L RF 15-35mm F2.8 L IS USM | Viltrox AF 56mm f/1.7 | Meike Neo Series MK-5514STM-Z | Panasonic LUMIX S S-R28200 |
|---|---|---|---|---|---|---|
| Focal Length | 28mm | 16-300mm | 15-35mm | 56mm | 55mm | 28-200mm |
| Max Aperture | 1.4 | f/1.4 | f/2.8 | f/1.7 | f/1.4 | f/4 |
| Mount | Leica M | Sony E | Canon RF | Fujifilm X | Nikon Z | L-Mount |
| Stabilization | true | true | true | true | true | true |
| Weather Sealed | false | true | true | false | false | true |
| Weight (g) | 330 | 1089 | 840 | 171 | 280 | 413 |
| AF Type | Manual Focus | HLA | Nano USM | STM | STM | Autofocus |
| Lens Type | prime | zoom | zoom | prime | prime | macro |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Thypoch Simera Simera 28mm f/1.4 | 13.5 | 98.7 | 67.1 | 57.5 | 61.2 | 94.5 | 34.4 | 50.8 | 79.6 |
| Sigma Contemporary 16-300mm F3.5-6.7 DC OS Compare | 53.3 | 94.4 | 33.8 | 84.5 | 98.9 | 94.5 | 99.7 | 89.6 | 99.1 |
| Canon L RF 15-35mm F2.8 L IS USM Compare | 94.1 | 80.1 | 43.8 | 70.1 | 90.3 | 77.6 | 76.6 | 89.6 | 96.5 |
| Viltrox AF 56mm f/1.7 Compare | 86 | 92 | 85.7 | 94.2 | 69.8 | 91.3 | 34.4 | 89.6 | 79.6 |
| Meike Neo Series MK-5514STM-Z Compare | 86 | 94.4 | 73.1 | 94.5 | 51.1 | 94.5 | 34.4 | 89.6 | 79.6 |
| Panasonic LUMIX S S-R28200 Compare | 53.3 | 70.1 | 73.8 | 87.5 | 91.4 | 63.3 | 95.9 | 89.6 | 99.5 |
Common Questions
Q: Does this lens transfer EXIF data to the camera?
No, it's a purely mechanical mount with no electronic contacts, so you won't get aperture, focal length, or lens model info in your files—but focus peaking will still work if your body supports it.
Q: Can I use a 49mm filter and the lens hood at the same time?
Yes, the hood threads onto the outer barrel and doesn't block the filter ring, so you can stack a circular polarizer or ND filter with the hood in place.
Q: Is the current version the Type II with the crescent focus tab?
If you buy from reputable dealers like B&H, you'll get the latest Type II version with the ergonomic crescent-shaped tab, which makes one-finger focusing much more comfortable.
Who Should Skip This
Skip this lens if you need autofocus for fast street or event work, because the manual-only operation will slow you down. If weather resistance is critical, look elsewhere—the Simera has no sealing against dust or moisture. Also, rangefinder photographers who prize full EXIF data and factory 6-bit coding should consider Voigtländer or Leica alternatives with electronic contacts instead.
Verdict
If you own a Leica M body and crave a fast 28mm with gorgeous bokeh and a vintage soul, the Thypoch Simera is a wonderful lens. It's not for everyone—you'll miss autofocus and weather protection—but for deliberate, creative work, it's a gem. Especially if you can snag it for around $400, it's hard to pass up.