D
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I just can't handle the speed of your video, it looks like a cartoon!
You can slow it down on Youtube
I just can't handle the speed of your video, it looks like a cartoon!
What are your thoughts on the narrow depth of field on the F1.2 lens and keeping it in focus, vs a slower lens?I agree. The 6mm seems optimal for a secondary dash cam telephoto lens. As I mentioned in another recent post I think it's important to capture the oncoming lane of traffic as well as the lane you are traveling in and the 6mm seems to provide a magnified view of both without being so a long a telephoto that it invites vibrations with every little bump in the road,
What are your thoughts on the narrow depth of field on the F1.2 lens and keeping it in focus, vs a slower lens?
As with most things in life, you tend to get what you pay for. These fast 'starlight' lenses are cheap, and we should not expect too much from them. @kamkar1 spent $40 on his 12mm lens and i think his results were a lot sharper than anything I have seen from my cheap telephoto lenses.That's a good question and one I've been thinking about recently. As interesting and cool as these ƒ/1.2 lenses are, I'm a bit frustrated with them. The short depth of field is an issue, to be sure. And all in all, no matter what I do for focusing I find them not to be anywhere near as sharp as other lenses I own. Sometimes it just feels like the 6mm is hard to focus, and it is, but even when I get it about as good as seems possible it can disappoint a bit. For example, my Varifocal IR 2.8-12mm ƒ/1.4 lens provides dramatically better sharpness and acuity than this 6mm ƒ/1.2 in my results or any I've seen posted by others here. Take a look at just about any of the examples I posted in the Varifocal IR thread, such as HERE and see if you don't agree. That lens has proved quite remarkable. Soon, I hope to finally get around to installing an IR cut filter on that lens and if the results are still as good as I achieved with the manually color corrected IR version I will probably go back to it full time. The telephoto magnification can be set to exactly match the 6mm ƒ/1.2 and the improved depth of field is a real plus. And all in all the ƒ/1.4 varifocal lens is quite fast, even if not quite so fast when racked out to 12mm or as fast as these "Starlight" lenses.
As with most things in life, you tend to get what you pay for. These fast 'starlight' lenses are cheap, and we should not expect too much from them.
As with most things in life, you tend to get what you pay for. These fast 'starlight' lenses are cheap, and we should not expect too much from them. @kamkar1 spent $40 on his 12mm lens and i think his results were a lot sharper than anything I have seen from my cheap telephoto lenses.
Yes, that varifocal lens has been very good for you, and at a budget price. I've read about other people having not so good results from it, so maybe you got a good one?That varifocal lens is widely available for around $7.00. The optical performance across the board has been outstanding.
These "Starlight" lenses seem to be well made but they were not designed for dash cams or action cams, they are IR lenses intended for static CCTV cameras. It's possible that they would perform better in the types of cameras they were specifically designed for and that feature sensors that match their specs in size.
There are some user interfacing with a thing like changing a lens, and maybe some just cant be bothered with going all the way in search of the best possible result.
And so they will settle with kinda okay focus, maybe for a while and then get angry about and ditch the lens totally forgetting that they abandoned the project mid flight, and it is actually a adjustable thing you are working with.
Yes, that varifocal lens has been very good for you, and at a budget price. I've read about other people having not so good results from it, so maybe you got a good one?
i had 3 adjustment sessions so far with my 12 mm lens, going back and forth.
I wish it was like photo lenses you just snap on, and auto focus. But that's not it messing with lenses on a dashcam take you right back to the photo class days in the 9 grade in school, and wayyyyy before auto focus.
I was thinking of the M1 discussion thread over at RCG where someone had tested a variety of M12 lenses, which I read before I bought any of my recent third party lenses. I remember he immediately discounted a varifocal which kept losing focus. I recall it looked like yours, but tbh it could have been a different one.I have not read any such commentary about "other people" experiencing poor results from this particular varifocal lens. Can you provide a link to the remarks you are referring to?
BTW, compared to other similar varifocal lenses I've examined, this $7.50 lens is a tiny precison crafted masterpiece made entirely of cast and machined metal parts and with a smooth as silk focusing and zooming mechanism. The lens is amazingly well corrected for optical flaws and is tack sharp. Some other CCTV varifocal lenses I've seen are made of plastic (usually FRP), don't have the optical quality and generally don't feel like they are of the quality of this one. I have no reason to believe I just got lucky and "got a good one".
I was thinking of the M1 discussion thread over at RCG where someone had tested a variety of M12 lenses, which I read before I bought any of my recent third party lenses. I remember he immediately discounted a varifocal which kept losing focus. I recall it looked like yours, but tbh it could have been a different one.
Edit: I found the RCG post here https://www.rcgroups.com/forums/showpost.php?p=29765197&postcount=11914
I note that he did not actually test the lens. I should have re-read the RCG post before making my comment earlier.
My Mobius testing was nearly put on hold today, after my 6 year old son helped himself to 4 of my cameras, including a beta test unit . He is developing a habit of taking anything he likes
I've got them back now. It seems they're safer mounted in the car than on the desk at home.
No, he didn't find my box of spare lenses!Hey, obviously he has an affinity for cameras and he's taking after his dad! Did he swap any of the lenses before you got the cameras back?
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