frogger321
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For me also, so thank you.
That is the original A129 lens. Not sure why it's referred to as V2 in the picture in the previous post. It's a good lens.Is this also a V2 lens?
Thank you?
That is the original A129 lens. Not sure why it's referred to as V2 in the picture in the previous post. It's a good lens.
I lately received my A119S and also have the same question:Is this also a V2 lens?
I lately received my A119S and also have the same question:
At the first glance it looked as ordinary uncoated F1.6 Lens. The tests showed very soft night image and significant halos around the light sources. Thus, I investigated the flares on the lens surface trough the loupe. I noticed that reflected lamp image on the front lens surface was blurred and unclear.
IMPORTANT
I finally realized that the layer of glue rests from the protective film was the reason of halos! It took me almost an hour for this nasty snot safety removal! It took almost twice as much for CPL filter as it had two protective films on it!
Tools and Materials.
I used medical tissues with isopropyl alcohol for injections, lens care kit (rubber pump, velvet wiper, and isopropyl alcohol spray), very soft paper tissues, and distilled water spray.
The Procedure.
Precautions
- I softly wiped the lens surface circle-wise with medical tissues.
- Right away I sprayed once with distilled water and quickly wiped the lens surface with soft paper tissue.
- Repeated step 1 and 2 until the reflected image became sharp and bright and lens appeared almost black under bright lamp. Replaced medical tissue after used it from either side. Replaced paper tissue after each iteration.
- Even after long cleaning I saw whitish stains while looking at the lens surface against bright lamp trough the loupe. Used lens care kit for perfect result.
- Repeated steps 1-5 until got absolutely clear lens/CPL filter surface.
Be very gentle while wiping the lens. Do not use any hard grain paper. Special optic tissues and wipers is the best choice. Do not let isopropyl alcohol affect the lens longer than 30 seconds. Wash it with one spray of distilled water immediately after 10-15 wipe circles.
Check the surface condition trough the loupe after each step to avoid coating damage.
After lens cleaning the night tests became perfect! The halos almost disappeared and the image contrast also significantly increased. Yet, the windscreen needs polishing.
I hope this guide will be useful for other users.
Still ask for help to identify my lens type.
Thanks
That is the original A129 lens. Not sure why it's referred to as V2 in the picture in the previous post. It's a good lens.
Thanks for identification.It's lens 2.
The newest viofo lens (it's out for a long time though).
It's not any official V2 lens designation. It's more for general knowledge that us members of the forum here use. Differentiating between the various lenses and mountings that the A119S has had over it's production is more for the modified firmware user's knowledge.
Hey guys! Thanks for your expertise. Yet, it seems to me there is some term confusion with the lens type number within A119S forum.there's a lot of misinformation about lenses which just leads to confusion
Great questions and you are correct, its all screwed up by my 2017 mistake.Thanks for identification.
Hey guys! Thanks for your expertise. Yet, it seems to me there is some term confusion with the lens type number within A119S forum.
I counted at least 3 lens types mentioned to be installed in A119S:
F1.6 V1 uncoated lens with metal base
F1.8 V2 coated lens with plastic base
either lens type mentioned in this well known video
furthermore we have 2 lens types (Lens 1 and Lens 2) mentioned in this picture
Lens F1.6 V1 from video is very similar to Lens 2 from the photo above. Are they the same? Should we reconsider lens type ID somehow?
Would you please clarify the terminology and please advise where I can find some technical data for each Lens type?
What exactly lens type of above mentioned my A119S have? (I bought it 1 month ago in US and it had the latest firmware version installed)
How good comparatively the coating, contrast, resolution, sharpness, focus distance, aperture of my lens and what version of MODs should I choose?
Thanks!
Are there any specs or datasheets for these available? Are there at least focus distance, contrast or resolution? FOV is a calculating value that depends on matrix dimensions and fucus distance. FOV values do make a confusion when they referred to the same lens on different VIOFO models. Thanks!Actually both lens are F1.6, main difference is FOV
Thus, I consider my lens as Lens 2 type. It has some wider FOV that makes me happy. However, I learned this new CPL frame vignetting problem from you.F1.6 uncoated Lens with new metal base 140 FOV used in second generation A119S & A129 requires larger beveled CPL Filter to stop vignetting = used in A119S & A129Duo as of Jan to Dec 2018. = (BCHobbyist 2018 name = Lens 2)