- 1 x Thypoch Simera 21mm f/1.4 Full-frame Prime Lens (Leica M Mount, Black)
- 1 x LH-S21 Lens Hood
Thypoch Simera 21mm f/1.4 Full-frame Prime Camera Lens with Manual Focus (Leica M Mount, Black)
- 21mm Focal Length
- Compatible with Leica M-Mount Cameras
- Full-frame Image Circle
- f/1.4 Maximum Aperture
- Manual Focus Operation
- 0.23m Close Focus Distance
- 90-degree Diagonal Angle of View
- 14 Blade Iris Design
- 13 elements in 11 groups
- M62 Filter Size
- 27.8 mm Flange Distance
- Tactile Resistance Point at 0.7m
The Thypoch Simera 21mm f/1.4 Lens (Leica M, Black) gives photographers a fast full frame ultra wide prime for landscapes, architecture, documentary work, street scenes, interiors, close perspective effects, and cinematic stills. Its 21 mm field of view delivers expansive spatial depth, while the large f/1.4 aperture supports available light shooting and subject separation uncommon for an ultra wide lens.
Ultra Wide 21mm Full Frame View
The Simera 21mm covers a 43.2 mm full frame image circle and provides a 90 degree diagonal angle of view, with 80 degree horizontal and 58 degree vertical coverage. This wide perspective helps include environment, foreground, and background context in the frame, making the lens useful for storytelling compositions and immersive scene setting.
Fast Aperture and Close Focus Creativity
The f/1.4 maximum aperture gives photographers more control in low light and allows selective focus effects at closer distances. A 0.23m minimum focus distance lets creators move close to foreground details while keeping the surrounding environment visible, opening creative options for close environmental portraits, product details, travel scenes, and dramatic wide angle compositions.
Manual Mechanical Build for Stills and Video
The lens uses 13 elements in 11 groups with 2 aspherical elements, 3 ED elements, 3 HRI elements, and a floating lens group. A 14 blade iris supports rounded highlights, while the click/declick aperture ring helps serve both photo and video workflows.
Product Type
| Category | Camera Lenses |
| Brand | Thypoch |
| Series | Simera |
| Model | Simera 21mm f/1.4 |
| Lens Type | Full-frame ultra wide prime lens |
| Mount | Leica M |
| Color | Black |
| Country of Manufacture | China |
Optical Design
| Focal Length | 21 mm |
| Image Circle | 43.2 mm, full frame |
| Optical Construction | 13 elements in 11 groups |
| Special Elements | 2 aspherical elements, 3 extra low dispersion elements, 3 high refractive index elements |
| Floating Lens Group | Yes |
Aperture and Focus
| Maximum Aperture | f/1.4 |
| Minimum Aperture | f/16 |
| Iris Blades | 14 |
| Focus Type | Manual focus operation only |
| Close Focus Distance | 0.23 m |
| Close Focus Distance | 9 inches |
| Rangefinder Focus Limit Reminder | Tactile resistance point at 0.7 m |
| Aperture Mechanism | Click/declick aperture control |
Angle of View
| Diagonal Angle of View | 90 degrees |
| Horizontal Angle of View | 80 degrees |
| Vertical Angle of View | 58 degrees |
Lens Body
| Flange Distance | 27.8 mm |
| Front Diameter | 66 mm |
| Filter Size | M62 |
| Lens Hood | LH-S21 |
Dimensions and Weight
| Length without Lens Hood | 69.4 mm (2.73 inches) |
| Length with Lens Hood | 78.6 mm (3.09 inches) |
| Product Weight | Approximately 428 g |
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Frequently Asked Questions
How do I return an item?
How do I return an item?
Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
Will I receive a full refund when I return an item?
Will I receive a full refund when I return an item?
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.
How many days do I have to make a return?
How many days do I have to make a return?
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days.
My item was damaged in transit. How do I place a return?
My item was damaged in transit. How do I place a return?
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage.
There’s an issue with my order, what should I do?
There’s an issue with my order, what should I do?
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.
Can I exchange an item?
Can I exchange an item?
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.
If I ordered a kit, do I have to return all the items?
If I ordered a kit, do I have to return all the items?
If you ordered a kit, you must return all components and accessories to receive a full refund.
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.
Do you offer repairs?
Do you offer repairs?
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.
What is your return policy?
What is your return policy?
Most items can be returned within 30 days for a full refund. Click here to read our full return policy.
