TonyM
Well-Known Member
- Joined
- Jul 30, 2013
- Messages
- 5,446
- Reaction score
- 5,121
- Country
- United Kingdom
- Dash Cam
- Mobius 1S Telephoto, A139, B1W
The F1 standard lens has a 160° field of view and an F2.8 aperture.
I decided to try installing a 4K 4mm F2.0 lens with 100° field of view: 4K Lens 8Megapixel Fixed M12 Small Lens 1/2.5 inch 4mm 100 Degree
![1520430039883.png 1520430039883.png](https://dashcamtalk.com/forum/data/attachments/36/36680-4f10822dc7a7f7aae1097679d24da38c.jpg?hash=TxCCLcen96)
![1520430172526.png 1520430172526.png](https://dashcamtalk.com/forum/data/attachments/36/36681-538e249d587d7ebfa08ccd4a914008bf.jpg?hash=U44knVh9fr)
I'm pleased with the results from this F2.0 lens. It has good edge-to-edge sharpness and a decent depth of field.
Comparative frames from the F1 and my A119 (set at 1440p30).
The A119 has less motion blur (F1.8 lens and different sensor). The F1 has considerably more detail (narrower 100deg FOV and 4K sensor).
F1:
![180307_F1-4mm_1.jpg 180307_F1-4mm_1.jpg](https://dashcamtalk.com/forum/data/attachments/36/36682-94ad2aabb3ae605a259d3185a9f3292f.jpg?hash=lK0qq7OuYF)
A119:
![180307_A119_1.jpg 180307_A119_1.jpg](https://dashcamtalk.com/forum/data/attachments/36/36683-58255b09483d61f5cc476bd89a689bf1.jpg?hash=WCVbCUg9Yf)
F1:
![180307_F1-4mm_2.jpg 180307_F1-4mm_2.jpg](https://dashcamtalk.com/forum/data/attachments/36/36684-a0bd1fccfc3f87f8059e6143b1a5486e.jpg?hash=oL0fzPw_h_)
A119:
![180307_A119_2.jpg 180307_A119_2.jpg](https://dashcamtalk.com/forum/data/attachments/36/36685-f4e8596d470ca4e36029a40795a79874.jpg?hash=9OhZbUcMpO)
F1:A119 side-by-side (100% crops from original frames)
![180307_F1_A119_1.JPG 180307_F1_A119_1.JPG](https://dashcamtalk.com/forum/data/attachments/36/36687-0cd85e6d22fb3ff1d91a75b742116cb3.jpg?hash=DNhebSL7P_)
![180307_F1_A119_2.JPG 180307_F1_A119_2.JPG](https://dashcamtalk.com/forum/data/attachments/36/36688-18ffeb27efcae5ca7a7b3593386102d9.jpg?hash=GP_rJ-_K5c)
I decided to try installing a 4K 4mm F2.0 lens with 100° field of view: 4K Lens 8Megapixel Fixed M12 Small Lens 1/2.5 inch 4mm 100 Degree
![1520430039883.png 1520430039883.png](https://dashcamtalk.com/forum/data/attachments/36/36680-4f10822dc7a7f7aae1097679d24da38c.jpg?hash=TxCCLcen96)
![1520430172526.png 1520430172526.png](https://dashcamtalk.com/forum/data/attachments/36/36681-538e249d587d7ebfa08ccd4a914008bf.jpg?hash=U44knVh9fr)
I'm pleased with the results from this F2.0 lens. It has good edge-to-edge sharpness and a decent depth of field.
Comparative frames from the F1 and my A119 (set at 1440p30).
The A119 has less motion blur (F1.8 lens and different sensor). The F1 has considerably more detail (narrower 100deg FOV and 4K sensor).
F1:
![180307_F1-4mm_1.jpg 180307_F1-4mm_1.jpg](https://dashcamtalk.com/forum/data/attachments/36/36682-94ad2aabb3ae605a259d3185a9f3292f.jpg?hash=lK0qq7OuYF)
A119:
![180307_A119_1.jpg 180307_A119_1.jpg](https://dashcamtalk.com/forum/data/attachments/36/36683-58255b09483d61f5cc476bd89a689bf1.jpg?hash=WCVbCUg9Yf)
F1:
![180307_F1-4mm_2.jpg 180307_F1-4mm_2.jpg](https://dashcamtalk.com/forum/data/attachments/36/36684-a0bd1fccfc3f87f8059e6143b1a5486e.jpg?hash=oL0fzPw_h_)
A119:
![180307_A119_2.jpg 180307_A119_2.jpg](https://dashcamtalk.com/forum/data/attachments/36/36685-f4e8596d470ca4e36029a40795a79874.jpg?hash=9OhZbUcMpO)
F1:A119 side-by-side (100% crops from original frames)
![180307_F1_A119_1.JPG 180307_F1_A119_1.JPG](https://dashcamtalk.com/forum/data/attachments/36/36687-0cd85e6d22fb3ff1d91a75b742116cb3.jpg?hash=DNhebSL7P_)
![180307_F1_A119_2.JPG 180307_F1_A119_2.JPG](https://dashcamtalk.com/forum/data/attachments/36/36688-18ffeb27efcae5ca7a7b3593386102d9.jpg?hash=GP_rJ-_K5c)
Last edited: