Wide Angle/Macro Lens - Nexus One Accessories

Anyone ever use one of these?
http://cgi.ebay.com/Wide-Angle-Macr...590532?pt=PDA_Accessories&hash=item3cae04d704
I was thinking about maybe checking it out. Looks pretty promising, but so do a lot of things you see online lol.
Curious to hear from someone who's used it.

its like those adapters for lenses of DSLRs or whatever. it pretty much puts a lens that gives you a magnifying effect like a magnifying glass or curved more for a more wide shot.. its a cheap piece of glass in that thing.. yah gives u the shot but most likely drops your quality down considerably

I have a cheap one (16USD) bought from dealextreme.com I use it with a kodak zi8 flip camera and my nexus one. on the zi8 it works great, on the nexus you can see vignetting from the lens.
there are several different lenses, and some are VERY low quality, blurred edges, etc. be sure to read reviews and view sample images of the specific lens you want to buy, if you can
it's a fun accesory to have when used with a photo app (picplz, photoshop express, etc)
mine is only a wide angle/fisheye lens, no macro.

Related

Rear camera distortion

Just noticed that when things are in the top portion of the picture with the camera tilted down slightly things get distorted. It makes heads oblong and alien looking. Wondering if other people have this same issue or if it's just my phone. So it's really a question of whether the phone is being exchanged or returned.
I've attached two pics. When the tv is in the top portion of the pic it looks a lot taller than when it's in the center of the pic. Both pics were taken from the same distance at the same zoom amount.
Did you take the plastic film off the lens that comes from the factory?
s197 said:
Did you take the plastic film off the lens that comes from the factory?
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I was gonna say the same! Although mine lately has not been focusing at all unless i shake it. View is immediately blurry, but up close to something it is fine. Like it is stuck in close up. Shake it and seems good. This is before ROOT and playing around. Any ideas?
s197 said:
Did you take the plastic film off the lens that comes from the factory?
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Did you have a plastic film on your camera? I had one over the fingerprint sensor but if there is one on my camera it's near impossible to detect, I feel like I'm just scratching at the glass although my fingernail is definitely catching on something. I just cant tell if it's the edge of the glass for the camera or a film covering it.
i had the same issue so i boiled my kettle, and held the phone above it after it boiled and let the steam peel the lense sticker.
omgi0wn said:
Did you have a plastic film on your camera? I had one over the fingerprint sensor but if there is one on my camera it's near impossible to detect, I feel like I'm just scratching at the glass although my fingernail is definitely catching on something. I just cant tell if it's the edge of the glass for the camera or a film covering it.
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If you had the plastic on it, you'd know it. It was very noticeable on mine.
droidiac13 said:
If you had the plastic on it, you'd know it. It was very noticeable on mine.
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I really can't tell if it's there, if it is it lines up almost perfectly. It isn't causing me issues for now though so I'm not going to mess with it.
omgi0wn said:
I really can't tell if it's there, if it is it lines up almost perfectly. It isn't causing me issues for now though so I'm not going to mess with it.
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You would notice in the center of the lens. The plastic would have a cut. Once it's off, the lens is perfectly flat across the top.
The plastic was still on, but no change in distortion taking it off. I'm guessing the cutout in the center of the plastic makes it so it doesn't impact photos.
So I tested on my computer monitor and am able to somewhat replicate what is happening in your shots. However, this distortion is natural because you're tilting the camera downwards on its axis. Its called perspective lens distortion and is common to all cameras without a tilt shift lens (a lens that costs several thousand dollars). You should be able to replicate the effect with any camera phone.
Yeah I've noticed distortion in other cameras but it's just not so extreme. On the s6 the distortion makes any pics with the subject on the edge ridiculous and unusable.
I think I've narrowed it down to when the s6 is set up to shoot max resolution at 16:9. When I switch it to 4:3 the distortion is pretty much gone since that distorted area is just cropped out but that reduces it from 16mp to 12mp. Other phone cameras I've had (moto x 2nd gen and s3) crop the other way (max resolution at 4:3 and then crop to get 16:9).
So the s6 presumably has a 16:9 sensor where the others had 4:3. But the extra width is pretty much unusable.
I'm not sure how I feel about this. What's the point of having a 16mp camera if you can only effectively use 12mp?
Any update on this? I was hoping there's a post processing software in Android/Windows/OSX that can compensate for the lens distortion even though it'll reduced the resolution a bit. I have a AT&T Galaxy S6.
I tried DXO Optics Pro 8, and it works very good for shots from my Nikon D7000 to un-alienize the faces, but there are no modules for the Galaxy S6 lens.

LG V20 unwanted transparent line in the middle of videos

Ladies and Gents, please look into youtube for V20 videos. SOME SCENES clearly show a fine line in the middle of the video in most of what I saw.
This is NOT the only example out there, you gotta youtube for more.
Trust me, I tried not to see it, but it is there. Like there are two joint lenses on top of the camera. Seriously, this is the last thing that held me back to buy it.
im not seeing what you are describing
I'm not seeing the line you mentioned, but wow the video quality on this phone is unreal can't wait to get mine.
No line for me on my v20 looks good!
Sent from my VS995 using Tapatalk
I haven't seen the issue either.
There's a protective film on the camera lens like there was on the back. One recommendation I saw was to leave it on to help protect an apparently fragile lens cover. Perhaps yours has a defect in the film?
There's actually 2 protective films on the camera. One smaller circle covers the lens area itself and can be easily removed. The other goes around the entire glass area and is harder to remove. It sounds like the smaller one could be slightly off center and was not removed.

Lens material - Glass or GG or sapphire

OK, so I have this beautiful new phone and enjoying all of it's deliciousness.
I'm wondering what the lens material is , I'm pretty sure it's not Sapphire since it just doesn't seem to have that look, Sapphire tends to have less transparent look about it but I could be wrong. I believe it has a higer reflectivity(??) index than glass and it's actually not ideal 4 lenses and screens for this reason. Having said that maybe you wouldn't use it on a Hasselblad but its perfect for a phone.
I've had a fair bit of a look around and I can't find any mention of it. it's definitely glass but what kind?
And further to this I wonder if anyone's going to make some protection for it?
Sent from my MHA-L29 using Tapatalk
Leica will use optical glass that is designed for cameras.
Any sort of protective cover will have inferior optical qualities and reduce the picture quality.
I do agree in principal, but once you have a scratch or just the micro scratches from a year or more of use, i submit that a replacable protective cover / film will in the long term yield benefits. Two phones ago i got a sctratch on my lense and that was that! Looked like crap from then on. I always had one on my Xperia Z3 I even did some back to back comparisons on my top of the line 4K TV, I could not for the life of me tell any difference between the two. Nor could the Missus. So I left it on and replaced it a couple of times, happy days! And I'm a rough bugger so my phone's get abused
It probly has what Huawei has uses in their phones this year. I'd say the same as the p9 and honor 8

[SOLVED] Rear main camera : something weird under glass ?

I was worried about possible dust inside top corner left main camera sensor (as you can see here https://youtu.be/2KfBsb_qEeE)
Seems to be fixed by nice redpoint73 answer, and after checking again, this isn't a piece of dust (maybe part of OIS mecanism).
Thanks again.
I'm a photography enthusiast (DSLRs, and now moved to a full frame mirrorless camera), and what I can tell you is NOT to be concerned about a single speck (or even several) of dust, if that is even what it is. A single speck of dust (or a few) will never show up on photos or video.
Here are a couple interesting articles from a popular website for renting camera lenses (Lensrentals.com):
First article is about the effect of dusk or scratches on a lens. When you look at the example photos taken with a "fairly bad" lens, they do seem pretty soft/blurry. Then you scroll down to see a picture of what the lens actually looks like, and it's pretty funny. I won't give it a away, it's better viewed yourself. But the point is that a lens can be in really rough shape, and still take decent photos. And even the lens in question, they had to try very hard (very specific circumstances) to get the "scratches" to show up in the photos:
https://www.lensrentals.com/blog/2008/10/front-element-scratches/
Another article, they found an entire house fly inside a lens, and it didn't even affect the photos except when stopped down to f13 (which isn't common to stop down that far) and even then, it was just a shadow, barely visible.
https://www.lensrentals.com/blog/2019/04/removing-fly-from-weather-sealed-canon-70-200mm/
Now, this is a big DSLR lens. And something as big as a house fly would have a much larger effect on a tiny phone lens. But the point being, a speck of dust is not even going to be visible under any conditions on your phone's camera.
Another good example, you can actually take photos through a chain link fence; or fabric mesh such as at a baseball field or other sports. If you get the lens up close to the fence or mesh, and take a photo of a subject far away, you will see that the mesh practically disappears. This also works taking photographs through some very dirty or scratched glass, such as exhibits at a zoo. If you can get the lens close up to the glass, even really dirty/scratched glass becomes nearly invisible. Same exact principle for dust on the lens. Since it is so "close" to the lens, it is not going to be visible. And anything on the lens has to get pretty bad, before it has any effect on the pictures. Really dirty/greasy glass on the camera phone's lens does make a difference - but you practically have to have a layer of dirt or grease.
I do have an old HTC One (M8) that has quite a few specks of dust on the inside of the back camera lens. Don't know if dust was getting inside somehow (that seemed to be the case). It looked pretty bad (looking at the lens) after using the phone a couple years - usually carrying it in my pocket. Maybe dozens of specks of dust on the inside of the lens - not just one or a few. But I can still not see any affect on the pictures.
Thanks for your long answer.
I'm not worried about it anymore, thanks to your thoughts, but also after that I'm pratically sure that it's not a small piece of dust.
Thanks again
basongwe said:
Thanks for your long answer.
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You're welcome. Although there is a button for that (thanks).
Also, please don't change the thread title like you did to "Solved" and delete the original content. This is really bad forum etiquette. It may be "solved" for you. But others may have a similar question or issue. A thread is never truly "solved" or "closed" (for everyone) in my opinion, as others may have additional information, questions, opinions, etc. And having a descriptive title (and keeping the original post) helps others find the info, know what the thread is about, etc.
If everyone did this, the forum would be full of empty threads, and the whole forum would be useless.
Please change the thread title and top post back to what you originally posted (as best you can remember, doesn't need to be perfect).
^agree, keep original title intact! Cheers
@basongwe I hope you don't mind as suggested by @redpoint73 and @galaxys but I've re-established the title of this thread as it was provided by you the last time.
I've done it too but thanks
redpoint73 said:
I'm a photography enthusiast (DSLRs, and now moved to a full frame mirrorless camera), and what I can tell you is NOT to be concerned about a single speck (or even several) of dust, if that is even what it is. A single speck of dust (or a few) will never show up on photos or video.
Here are a couple interesting articles from a popular website for renting camera lenses (Lensrentals.com):
First article is about the effect of dusk or scratches on a lens. When you look at the example photos taken with a "fairly bad" lens, they do seem pretty soft/blurry. Then you scroll down to see a picture of what the lens actually looks like, and it's pretty funny. I won't give it a away, it's better viewed yourself. But the point is that a lens can be in really rough shape, and still take decent photos. And even the lens in question, they had to try very hard (very specific circumstances) to get the "scratches" to show up in the photos:
https://www.lensrentals.com/blog/2008/10/front-element-scratches/
Another article, they found an entire house fly inside a lens, and it didn't even affect the photos except when stopped down to f13 (which isn't common to stop down that far) and even then, it was just a shadow, barely visible.
https://www.lensrentals.com/blog/2019/04/removing-fly-from-weather-sealed-canon-70-200mm/
Now, this is a big DSLR lens. And something as big as a house fly would have a much larger effect on a tiny phone lens. But the point being, a speck of dust is not even going to be visible under any conditions on your phone's camera.
Another good example, you can actually take photos through a chain link fence; or fabric mesh such as at a baseball field or other sports. If you get the lens up close to the fence or mesh, and take a photo of a subject far away, you will see that the mesh practically disappears. This also works taking photographs through some very dirty or scratched glass, such as exhibits at a zoo. If you can get the lens close up to the glass, even really dirty/scratched glass becomes nearly invisible. Same exact principle for dust on the lens. Since it is so "close" to the lens, it is not going to be visible. And anything on the lens has to get pretty bad, before it has any effect on the pictures. Really dirty/greasy glass on the camera phone's lens does make a difference - but you practically have to have a layer of dirt or grease.
I do have an old HTC One (M8) that has quite a few specks of dust on the inside of the back camera lens. Don't know if dust was getting inside somehow (that seemed to be the case). It looked pretty bad (looking at the lens) after using the phone a couple years - usually carrying it in my pocket. Maybe dozens of specks of dust on the inside of the lens - not just one or a few. But I can still not see any affect on the pictures.
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Click to collapse
Interesting but I clearly had a speck of dirt that showed up in photos on my OP6. I could see it in the lens and was very visible in photos.

Question How many have Lens Flare issue?

The more I read, the more it seems that P7P users have got a bad Lens Flare issue on the X1 Lens.
Out of curiosity, how many users here have the issue themselves?
I used to have the Mate 20 Pro for 4 years and the Lens Flare wasn't that bad in comparison to the P7P.
I'll add that I don't have a lens cover over my cameras and the glass is clean.
Everyone, that's just the nature of the beast.
1gavinr said:
The more I read, the more it seems that P7P users have got a bad Lens Flare issue on the X1 Lens.
Out of curiosity, how many users here have the issue themselves?
I used to have the Mate 20 Pro for 4 years and the Lens Flare wasn't that bad in comparison to the P7P.
I'll add that I don't have a lens cover over my cameras and the glass is clean.
Click to expand...
Click to collapse
That's not an "issue", everyone has the lens flare. It only depends on the light angle and how it hits the lens.
It's pretty bad. I took some comparison photos with my S21 before I sent it in for trade and the flare was awful. And non-existent on the Samsung photos.
This was taken with a Canon DSLR and a £2000 Canon L lens, there are always circumstances where it is going to happen.
issasaurus said:
It's pretty bad. I took some comparison photos with my S21 before I sent it in for trade and the flare was awful. And non-existent on the Samsung photos. View attachment 5762543View attachment 5762541
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Different focal lengths though so not a fair comparison.
MrBelter said:
This was taken with a Canon DSLR and a £2000 Canon L lens, there are always circumstances where it is going to happen.
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If it happens in some circumstances and only once in a while, its OK. But I think p7p has a permanent problem.
One request for folks who experience it: can you try a case (or any other way) which covers most of the aluminum? I think the reflections off the aluminum are adding to the flare phenomenon.
IMO, going with shiny metal around the lens was not a smart choice by google. Get the wrong curves on that part and it can mess with the light that goes into the lens.
devsk said:
If it happens in some circumstances and only once in a while, its OK. But I think p7p has a permanent problem.
One request for folks who experience it: can you try a case (or any other way) which covers most of the aluminum? I think the reflections off the aluminum are adding to the flare phenomenon.
IMO, going with shiny metal around the lens was not a smart choice by google. Get the wrong curves on that part and it can mess with the light that goes into the lens.
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Click to collapse
It does only happen in some circumstances though and only once in a while on the Pixel 7 Pro to be fair and those circumstances are using the 1X lens while it pointing it at something very bright and this is when lens flare is always a risk.
The problem is a lack of any anti reflection coating on the glass covering the lens, it is just plain glass sadly. I have wondered if we could use something as a lens hood which should help dramatically with the issue as it stops light from falling across the lens.
FWIW i have a black skin over my camera bar, it certainly made a difference one the P6P but it makes no difference whatsoever on the P7P
Using a different focal length other than 1X the problem is much, much less noticeable.
I see the issue across all lenses. That's why I think its the metal, not the lenses or the glass covering the lenses!
Any kind of coating will reduce the amount of light that the lens can capture. Is anti-reflective coating an industry standard across lenses?
hmm....quick google suggests that lack of anti reflective coatings on lenses may be the reason for this unusual issue. Which means that we are stuck with it...
And it does look like that anti reflective coating is the norm and it actually increases the light that reaches the sensor....Why would google hardware not do this? go figure!
devsk said:
I see the issue across all lenses. That's why I think its the metal, not the lenses or the glass covering the lenses!
Any kind of coating will reduce the amount of light that the lens can capture. Is anti-reflective coating an industry standard across lenses?
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Click to collapse
As i said, i have a black skin on my camera bar, there is no metal showing.
Any lens worth its salt be it camera or glasses will have an anti-reflective coating.
Why Lens Coatings Are So Important in Photography
A look at the science of camera lens coatings and how they improve optics while reducing things like lens flares in photographs.
petapixel.com
devsk said:
hmm....quick google suggests that lack of anti reflective coatings on lenses may be the reason for this unusual issue. Which means that we are stuck with it...
And it does look like that anti reflective coating is the norm and it actually increases the light that reaches the sensor....Why would google hardware not do this? go figure!
Click to expand...
Click to collapse
They have on the lenses, they just didn't bother on the class covering them.
MrBelter said:
They have on the lenses, they just didn't bother on the class covering them.
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Click to collapse
Any idea if it can be applied after the fact from the outside? Or is it something that has to be cured into the glass before putting it on the frame?
devsk said:
Any idea if it can be applied after the fact from the outside? Or is it something that has to be cured into the glass before putting it on the frame?
Click to expand...
Click to collapse
That i don't know, i wouldn't want to risk buggering the whole thing up myself as any coating has to bond to the glass and getting it back off could be difficult.
The fix may be as simple as holding your hand above the lens like a simple lens hood to prevent light scatter.
I went to a Christmas light switch on last night and the lens flare and the simple reflections you get from the plain glass doesn't half make you study the scene to try to get around it, that in its self makes spontaneous street photography at night difficult.

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