Combi
New Member
- Joined
- Jan 22, 2019
- Messages
- 24
- Reaction score
- 11
- Location
- Bloomington, Indiana
- Country
- United States
- Dash Cam
- Viofo A129 Front
Im really glad I went with the A129. Really like how helpful this forum is.
confirmed you own the newer narrower ~130 Field of View Coated Lens, the image quality from yours is excellent, definite winner.
Not necessarily. The amount of barrel distortion is not directly related to the field of view. Generally, cheap lenses distort more than expensive ones. Viofo use good quality lenses in their cameras.Would the 130 lens make the horizon flatter than the 140 lens?
I agree with Combi ^^^^^^^^. I know this forum has been very educational and helpful to me also. I respect and thank all of you that give of your time and knowledge to help answering questions and helping the rest of us learn. Viofo I'm sure appreciates this forum also. I'll bet the support found here sells a lot of cameras for them! BCHobiest and the DCTeam thank you for your work and testing on your beta firmware updates. I look forward to your posts to see your changes!
If Dashcam is mounted to small car windshield then answer is yes, narrower 130 Field of View Lens will produce less Fisheye effect and less side distortion due to curved windshield edge. This is another reason to mount any Dashcam as close to glass surface as possible. Its only recently that Dashcam owners are discovering Lens differences and option for realistic verses extreme wide angle and over-sharpened Firmware image quality. The curved horizon is most noticeable on 150+ FOV Lens such as A119 160 FOV, the A129 only has maximum wide angle of 140-145ish on original Lens and isn't very noticeable except on side edges.Would the 130 lens make the horizon flatter than the 140 lens?
Normally I suggest loading Stock VIOFO Firmware for a few weeks then try a lower Bitrate MOD that matches your Lens working your way to highest if you notice improvement. My MODs always use the second digit of Bitrate as version number for quick identification in my embedded MP4 ID Tags, MOD-6Uj = 26Mb/s Front Cam + 18Mb/s Rear Cam + U Image Quality changes + j minor adjustments. Something very special happens to Image Quality at 26.6Mb/s or higher, anything lower is usually mushy detail I avoid on Front camera and my Rear window is always dirty without wiper so 16-18Mb/s is fine. I create multiple modified versions for wider range of owner preferences.After reading quite a bit I think I'm finally ready to give one of these modded f/w a shot on my A129. I am confused by one thing and for the life of me can't find the answer. In this thread I see there are 3 different f/w from January 11th (6uk, 4uk, 2uk). How do I know which one I need?
Is the new 180deg rear camera available to order?Normally I suggest loading Stock VIOFO Firmware for a few weeks then try a lower Bitrate MOD that matches your Lens working your way to highest if you notice improvement. My MODs always use the second digit of Bitrate as version number for quick identification in my embedded MP4 ID Tags, MOD-6Uj = 26Mb/s Front Cam + 18Mb/s Rear Cam + U Image Quality changes + j minor adjustments. Something very special happens to Image Quality at 26.6Mb/s or higher, anything lower is usually mushy detail I avoid on Front camera and my Rear window is always dirty without wiper so 16-18Mb/s is fine. I create multiple modified versions for wider range of owner preferences.
If you own A129 as single camera with new narrower 130 FOV Lens recommend using MOD-6Uj for higher sharpness.
If you own A129 as single camera with original wide angle 140-145 FOV Lens recommend using MOD-6Uk for slightly less sharpness.
If you own A129 Duo and desire more detail from Rear camera with new narrower 130 FOV Lens recommend using MOD-4Uj for higher sharpness.
If you own A129 Duo and desire more detail from Rear camera with original wide angle 140 FOV Lens recommend using MOD-4Uk for less sharpness.
If you live in Hot climate always recommend using the lower Bitrate stock VIOFO Firmware to reduce load , heat and stress on chipset/processor.
Probably not ready for Retail sales for 30-90 days. Firmware is still v1.01 and that alone takes time. Not sure new IR Camera will appear on VIOFO's website or sold through select Vendors or both. My early IR Camera sample is still working and actually has better long range Focus than two of the original Rear Cams. Once officially announced it will be a fast seller and advertised heavily multiple times not to mention my IR MOD will be released in this thread on the same day.Is the new 180deg rear camera available to order?
From what I understand, the maximum total bitrate this camera's processor is capable of (without going into problems) is 44 Mbps. Having two cameras, you can have different combos for front and rear camera, as follows (the red + bolded + underlined digit indicates the front camera bitrate)
The U letter is dedicated to the A129 cameras and the k indicates the MOD version. @BCHobbyist - I hope I got that right, correct me if I'm wrong.
- 26 Mbps front and 18 Mbps rear -> 6Uk
- 24 Mbps front and 20 Mbps rear -> 4Uk
- 22 Mbps front and 22 Mbps rear -> 2Uk
I personally am using 2U (22 Mbps Front / 22 Mbps Rear) as it offers identical image quality for front and back.
So for those of us with A129 Duo 130°, is it only possible to improve rear camera detail (not front camera) with your modded firmware?Normally I suggest loading Stock VIOFO Firmware for a few weeks then try a lower Bitrate MOD that matches your Lens working your way to highest if you notice improvement. My MODs always use the second digit of Bitrate as version number for quick identification in my embedded MP4 ID Tags, MOD-6Uj = 26Mb/s Front Cam + 18Mb/s Rear Cam + U Image Quality changes + j minor adjustments. Something very special happens to Image Quality at 26.6Mb/s or higher, anything lower is usually mushy detail I avoid on Front camera and my Rear window is always dirty without wiper so 16-18Mb/s is fine. I create multiple modified versions for wider range of owner preferences.
If you own A129 as single camera with new narrower 130 FOV Lens recommend using MOD-6Uj for higher sharpness.
If you own A129 as single camera with original wide angle 140-145 FOV Lens recommend using MOD-6Uk for slightly less sharpness.
If you own A129 Duo and desire more detail from Rear camera with new narrower 130 FOV Lens recommend using MOD-4Uj for higher sharpness.
If you own A129 Duo and desire more detail from Rear camera with original wide angle 140 FOV Lens recommend using MOD-4Uk for less sharpness.
If you live in Hot climate always recommend using the lower Bitrate stock VIOFO Firmware to reduce load , heat and stress on chipset/processor.
No. 7Uj will give you 27Mbps on the front and 17Mbps on the back. That's a big increase on the front, possibly at the expense of rear camera detail. Or you can choose a different front / rear bitrate balance with 2Uj, 4Uj and 6Uj versions.So for those of us with A129 Duo 130°, is it only possible to improve rear camera detail (not front camera) with your modded firmware?
This may have been answered, but reading through 25 pages is a bit cumbersome. What is the default bitrate for Front and Rear Camera? I know each is set to 1080P + 30 FPS. But doesn't list bitrate for either combination. I.e Front 26 and rear 18.
Curious how the stock Viofo Firmware Compares to the Custom Mods. As from what I am reading here, the real changes in quality are derived from changing the bitrate of the cameras.
Firmware v1.50 Modified FW 4Uj
1080@60fps 1080@30fps 60fps+30fps 1080@30fps
Menu Single Cam Dual Cam Single Cam Dual Cam
Settings Front Front Rear Front Front Rear
Bit Rate Low 20.1Mbps 10.2 10.1 24.6Mbps 24.5 20.1
Bit Rate High 20.1 16.3 16.2 24.6 24.4 20.3
BR Low Wifi 2.4Ghz 20.1 8.0 7.0 24.5 8.3 6.9
BR High Wifi 2.4GHz + APP 20.1 8.1 6.9 24.5 8.1 6.9
Firmware v1.50 Modified FW 7Uj
1080@60fps 1080@30fps 60fps+30fps 1080@30fps
Menu Single Cam Dual Cam Single Cam Dual Cam
Settings Front Front Rear Front Front Rear
Bit Rate Low 20.1Mbps 10.2 10.1 27.6Mbps 27.6 17.4
Bit Rate High 20.1 16.3 16.2 27.7 27.6 17.4
BR Low Wifi 2.4Ghz 20.1 8.0 7.0 24.5 8.1 6.9
BR High Wifi 2.4GHz + APP 20.1 8.1 6.9 24.5 8.1 6.9
The purpose of all my Modified Firmware for A129 Duo, A119S, A119 Pro, A119, GitUp G3 Duo is to improve main Front camera. Specifically for the A129 Duo the side effect of different Bitrates is corresponding opposite Bitrate changes to Rear Camera (increase one decrease the other), but Image Quality, Sharpness, Saturation adjustments are applied to both with equal benefits.So for those of us with A129 Duo 130°, is it only possible to improve rear camera detail (not front camera) with your modded firmware?
Suggest you start recording your own test footage and SEE the quality difference in Sharpness alone using lower Bitrate MOD such as 4Uj.
Image Quality varies greatly from identical A129 models even with the same Lens due to lack of precise Focus adjustments on production line. The center focus can be blurry/soft but when using Strong Sharpness improves quality but on perfectly Focused Lens Strong Sharpness creates 'halo' outline effect. This was main IQ issue for over a year on all VIOFO Cams until modified firmware reduced Sharpness levels.
Stock Firmware Footage at 16 - 24Mb/s compared against 26 - 27Mb/s show noticeable improvement and best revealed by recording and comparing yourself, YouTube's samples are inaccurate.
Take MOD-6Uj for a test drive and compare against your own previous stock footage.
Code:Firmware v1.50 Modified FW 4Uj 1080@60fps 1080@30fps 60fps+30fps 1080@30fps Menu Single Cam Dual Cam Single Cam Dual Cam Settings Front Front Rear Front Front Rear Bit Rate Low 20.1Mbps 10.2 10.1 24.6Mbps 24.5 20.1 Bit Rate High 20.1 16.3 16.2 24.6 24.4 20.3 BR Low Wifi 2.4Ghz 20.1 8.0 7.0 24.5 8.3 6.9 BR High Wifi 2.4GHz + APP 20.1 8.1 6.9 24.5 8.1 6.9
Code:Firmware v1.50 Modified FW 7Uj 1080@60fps 1080@30fps 60fps+30fps 1080@30fps Menu Single Cam Dual Cam Single Cam Dual Cam Settings Front Front Rear Front Front Rear Bit Rate Low 20.1Mbps 10.2 10.1 27.6Mbps 27.6 17.4 Bit Rate High 20.1 16.3 16.2 27.7 27.6 17.4 BR Low Wifi 2.4Ghz 20.1 8.0 7.0 24.5 8.1 6.9 BR High Wifi 2.4GHz + APP 20.1 8.1 6.9 24.5 8.1 6.9
Ok I understand what you meant now. I only fitted the cam yesterday, so I’ll run it for a while on stock fw and then try 4UJ!The purpose of all my Modified Firmware for A129 Duo, A119S, A119 Pro, A119, GitUp G3 Duo is to improve main Front camera. Specifically for the A129 Duo the side effect of different Bitrates is corresponding opposite Bitrate changes to Rear Camera (increase one decrease the other), but Image Quality, Sharpness, Saturation adjustments are applied to both with equal benefits.
The Rear Camera image quality will always be less since its below 24Mb/s and never reach the 26.6Mb/s noticeable Bitrate boundary.
Thread starter | Similar threads | Forum | Replies | Date |
---|---|---|---|---|
J | Viofo A129 Duo Parking Mode Problem - Please Help | A129 / 129 Duo | 11 | |
W | Saumsung MicroSD + Viofo A129 Duo | A129 / 129 Duo | 4 | |
Y | Installing VIOFO A129 DUO in 2018 Nissan Murano | A129 / 129 Duo | 4 | |
M | Viofo A129 Duo questions | A129 / 129 Duo | 4 | |
D | Viofo A129 Duo parking mode is bad | A129 / 129 Duo | 18 |