TonyM
Well-Known Member
- Joined
- Jul 30, 2013
- Messages
- 5,417
- Reaction score
- 5,095
- Country
- United Kingdom
- Dash Cam
- A139, M1S
As an experiment to see how the F1 performs with a fast lens compared to the original F2.8 160 degree lens, I borrowed an F1.6 lens from a Viofo A129 and installed it in the F1.
First of all, the F1 has a 1/2.5" 8MP IMX317 sensor, whereas the A129 has a smaller1/3" 1/2.8" 2MP IMX291 sensor. So I was rather surprised to find that there is absolutely no vignetting on the F1 when using this A129 lens. I was expecting a circle within a black frame and having to consider using the Zoom (crop) function on the F1, but actually I have been able to use the full-frame of the IMX317.
The FOV when using the A129 on the F1 is less than the 160 degree original F1 lens, and slightly more than the 130 degree FOV when used on the A129.
I am currently testing the MOD#1.3 FW for the F1 as developed by @Falsificator , so the initial results here are not recorded with official GitUp FW. This is just a quick experiment to determine whether further testing is worthwhile.
For comparison to help in evaluating this F1 camera & A129 lens combination, I have recorded side-by-side with my Mobius Maxi (F1.5 Lens B), and an A129 that is also running MOD FW and an F1.6 lens.
F1 : 4k 30fps 100Mbps (FW v1.2 MOD#1.3)
Maxi : 2.7k 30fps 60Mbps (FW 2.04 beta)
A129 : 1080p 60fps 24Mbps (FW 1.42 MOD-4Rf)
-------------------------------------------------------
Original Frames
F1
Maxi
A129
100% crops:
F1
Maxi
A129
The F1 is recording more detail with less noise than the Maxi, although at a lower brightness. The A129 shows off its IMX291 with a much brighter scene, but highlights are blown and there is more blur and less detail.
Tomorrow I will take a look at daytime driving with this A129 lens on the F1.
First of all, the F1 has a 1/2.5" 8MP IMX317 sensor, whereas the A129 has a smaller
The FOV when using the A129 on the F1 is less than the 160 degree original F1 lens, and slightly more than the 130 degree FOV when used on the A129.
I am currently testing the MOD#1.3 FW for the F1 as developed by @Falsificator , so the initial results here are not recorded with official GitUp FW. This is just a quick experiment to determine whether further testing is worthwhile.
For comparison to help in evaluating this F1 camera & A129 lens combination, I have recorded side-by-side with my Mobius Maxi (F1.5 Lens B), and an A129 that is also running MOD FW and an F1.6 lens.
F1 : 4k 30fps 100Mbps (FW v1.2 MOD#1.3)
Maxi : 2.7k 30fps 60Mbps (FW 2.04 beta)
A129 : 1080p 60fps 24Mbps (FW 1.42 MOD-4Rf)
-------------------------------------------------------
Original Frames
F1
Maxi
A129
100% crops:
F1
Maxi
A129
The F1 is recording more detail with less noise than the Maxi, although at a lower brightness. The A129 shows off its IMX291 with a much brighter scene, but highlights are blown and there is more blur and less detail.
Tomorrow I will take a look at daytime driving with this A129 lens on the F1.
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