Develop Bugs

[Q] Green tint at photos from Defy camera

Hello,
I found green tint at photos, now it's much easier to find it when I have grey sky and snow.
I'm preatty sure you will find it yourself:
img89.imageshack.us/img89/8472/motoroladefysamplephoto.jpg
The strongest effect is in top right corner, but it affects other corners as well.
Also in center there is some big diffused purple spot.
To analize this issue I took few photos of A4 white sheet in daylight:
img695.imageshack.us/img695/72/motoroladefyresizedonly.jpg
To the same photo I added levels in Photoshop to better show the problem:
img844.imageshack.us/img844/7041/motoroladefywithlevels.jpg
I also compared it with Nokia 5800, my previous mobile with quite mid quality camera:
img831.imageshack.us/img831/7076/nokia5800resizedonly.jpg
You can see photo is all purplelike, but homogenic so it suggest that white balance didn't recognize correctly
white color. There is also green frame around picture, still smaller than in Defy.
The same picture with levels:
img510.imageshack.us/img510/1985/nokia5800withlevels.jpg
Seems to me pictures from Nokia 5800 are better than from Defy. Furthermore I had to modify exposure and chage level from 0 to 2
because picures straight from camera were too dark:
img513.imageshack.us/img513/8472/motoroladefysamplephoto.jpg
I'm not sure if this is "feature" of my particular phone or it affects all Defy phones and we have to live with it.
Could you do just simple test and take photo A4 sheet in daylight and share with effects here? Sheet should cover viewfinder fully.
Thank you in advance.....Rafal

Macro and wide fov lens (or how to picture really tiny stuff)

Used the more or less well known http://www.dealextreme.com/p/univer...ent-for-digital-cameras-and-cell-phones-14953
Samples (the shots are in macro focus mode, as close as i could get it to focus with that lighting)
1st one: with macro lens
2nd one: stock sgs2 lens
3rd one: with wide fov lens
Tiny review:
- easy to install and remove (its magnetic) and has lens protection stuff to carry the lens with you
- the macro is pretty good, the wide angle has more fish eye that it should for that angle, and you can see the black edges, but it does the job
- both have slightly blurry edges (but not nearly as blurry as ive seen in other reviews)
- cheap ($16)
- macro is where its the most helpful as you can now take pictures of tiny insects and the like, much closer than stock ever could. movies of tiny spiders are fun ;-)

Hi,
I'm interested in getting this.
Thanks for the review.
Hopefully fits mine I had the 2000mAH battery, so the casing changed.

Watch out, SGS2 has a wide angle lens and vignettes with many such lenses. Me got a fisheye from USBfever. No vignetting in movie mode though, seems to have less wide angle in movie mode.

qureyoon said:
Hi,
I'm interested in getting this.
Thanks for the review.
Hopefully fits mine I had the 2000mAH battery, so the casing changed.
Click to expand...
Click to collapse
Get it. I have the 2000mah battery and the batter cover has no impact on the use of this lens. The metal ring just sticks onto the camera area (the rectangle region). Use of other cases would not affect it either.

Just ordered one. It's got to be worth a risk at only £6.80 ($10.37) & free shipping.
If I remember I'll report back once I've got it.

_sem_ said:
Watch out, SGS2 has a wide angle lens and vignettes with many such lenses. Me got a fisheye from USBfever. No vignetting in movie mode though, seems to have less wide angle in movie mode.
Click to expand...
Click to collapse
More specifically, the still cam of the SGS2 looks like a 20mm lens on an APS-C crop frame DSLR (Nikon D90 for example), and the movie like a 35mm lens.
In traditional full-frame equivalents that'd be 30mm (wide-angle) and 50mm (normal), respectively.

lambstone said:
Get it. I have the 2000mah battery and the batter cover has no impact on the use of this lens. The metal ring just sticks onto the camera area (the rectangle region). Use of other cases would not affect it either.
Click to expand...
Click to collapse
when you say the metal ring sticks to the camera area, does it mean 1 side of the ring is adhesive? does it leave any residue when removing? covers the flash?

shot this VIDEO with stock sgs2 camera

Why is it mostly out of focus? Can't the SGS 2 focus that close or does it take a while to autofocus?

RhinoShield lens review

A bit ago I received these add-on lenses from RhinoShield to test out. I’m no professional photographer, just a regular joe, amateur photographer. But I guess they liked the reviews I’ve written about their cases on XDA, thus decided to send me this package when I asked about their crash guard for my pixel 2 XL.
Their approach is a little different than Moment. Rhinoshield’s focus is on developing cases for phone protection, where as Moment’s focus is mobile photography via add-on lenses. An extra part is required using the Rhinoshield’s add-on lenses. If you choose to explore their add-on lens, you need to buy a lens adapter for the case and the lenses simply screw onto the case via the adapter. My guess is, they went this route because their main focus is phone protection, therefore it’s not ideal to allow the lenses, as a secondary option, to increase the cost of production of the cases for the entire customer base when probably just a small percentage would consider buying the add-on lenses.
There are four add-on lenses as follow:
- 2 in 1 macro + 0.65x wide angle lens – 100 degree view angle
- 0.6x HD wide angle lens – 110 degree view angle
- Super wide angle lens – 165 degree view angle
- Fisheye lens
The photos are posted in the following order:
- without lens
- 2 in 1 macro + 0.65x wide angle in wide angle mode
- 0.6x HD wide angle lens
- Super wide angle lens
- Fisheye lens
- close up without lens
- close up with 2 in 1 macro + 0.65x wide angle in macro mode
All the photos are taken on a tripod, in the same position, at the same time, with the exception of the macro photo, that was taken indoor.
From my eyes, I think there is noticeable decrease in quality of the photos. I see quite a bit of vignetting of the images as you go wider. The distortion in the super wide and fisheye lens are expected, however the decrease in quality is quite severe. One odd thing noted is according to RhinoShield’s website, the HD wide angle is supposed to have 110 degree view angle, more than the 2 in 1. However, as you can see in the photos, the 2 in 1 captured more but also with more distortion. Now these are just my opinion, and like an a**hole everyone got their own, so just look at the photos and judge for yourselves. I did try to reach out to Moment for some lenses so I can do a side by side comparison review, but they politely declined. (lol ‘who are you?’)
Now in terms of build quality of the lenses, they feel sturdy and the material is all metal. They hold some weight and certainly doesn’t feel cheap. Each lens comes with front and back caps, as well as a little microfiber pouch. All of which explains the price tags, although they are still cheaper than Moment.
In summary, do I recommend these? Personally, I wouldn’t buy them because of the hit in quality of the photos. However, some people may not be as picky and the wide angle being so useful, especially in landscape photography, without many options in the market it may work for some folks. Also, if you only care to use the photos on social medial platforms, the photos get rendered down anyway making the distortions even less noticeable. If I have to pick, I think the 0.6x HD wide angle lens showed the least amount of distortion and so I’d go with that one.
Hope this was helpful.

Thanks for this review. I likely wouldn't have invested in these, but this solidified that.

OT but were the pictures of the brick wall taken at York U? Looks familiar.

ouldsmobile said:
OT but were the pictures of the brick wall taken at York U? Looks familiar.
Click to expand...
Click to collapse
nope, just outside my condo!

Bottom (telephoto lens) camera just a fake/dead?

So I was bored and watched a YouTube vid on a mobile camera review. And wondered which camera was where on the back of my N10+.
After holding a finger over each lens, I concluded that the ultrawide lens is on top, the "main" lens in the middle. (as the marketing material and Google says) But the telephoto (2x zoom) doesn't "black out" when holding a finger get the bottom lens
None of the 3 options are "blacked out" when holding a finger get the bottom lens. The bottom lens moves slightly when you change from one of the other lenses
Can someone please explain that?
Is the 2x optical zoom just a 2x digital zoom of the main lens?

x2 zoom lens is only active in good light, if the light is low cameras logic will pick normal lens and use digital zoom, which supposed to have better quality that way. So I would assume you were doing your tests in low, artificial light, try it again in daytime.

Yup. He did the experiment wrong.
On your camera with 2x zoom, then move your finger slowing from bottom and you can see ur finger covering the bottom lens. Once you move your phone in different direction, the screen suddenly clear again but your finger still covering the bottom lens. So It did use the normal lens once telephoto lens is in the dark.

Lol, I have seen this same doubts\claims since the note 8 times

Aaah lol ? didn't know that.

Question Photos flares.

I think Google should give a notice on foto flaring... Pixels has one of the worst flare effects...
What do you think about it?

Have you tried switching from wide angle to standard camera? (0.7x, 1, 2,4x zoom)

ocujos said:
Have you tried switching from wide angle to standard camera? (0.7x, 1, 2,4x zoom)
Click to expand...
Click to collapse
Standard camera Flares

Light is reflecting off the lens. Since they probably don't make any ND filters, if you have some old sunglasses that aren't too dark, try placing the lens over the camera sensor. The lenses on my d-slr have coatings to help reduce it, along with the lens hood, but if you are shooting directly at bright light, it can still happen. When it does I just photoshop it out.
You can also try settings in manual mode (I use camera FV-5) to set the f/stop at a different setting to change the exposure.

p51d007 said:
Light is reflecting off the lens. Since they probably don't make any ND filters, if you have some old sunglasses that aren't too dark, try placing the lens over the camera sensor. The lenses on my d-slr have coatings to help reduce it, along with the lens hood, but if you are shooting directly at bright light, it can still happen. When it does I just photoshop it out.
You can also try settings in manual mode (I use camera FV-5) to set the f/stop at a different setting to change the exposure.
Click to expand...
Click to collapse
Thanks for the tips... I already knew some of them... Google should do something deleting them using software... S21 ultra and s22 ultra have reflections of the lens too but don't have so annoying Flares..

It is more the light reflecting off the glass sheet that covers the whole of lens assembly than just lens flare, a cheap skin on it reduces it significantly. When using the night modes however it is difficult to stop simply because you are using multiple exposures and therefore stacking any flare on top of itself and multiplying the effect.
FWIW you cannot change the aperture, they are fixed and there is no diaphragm to open and close, hence the reason why you get really, really high shutter speeds when the light it good.
You will be able to alter the shutter speed though I'd have thought, it is an electronic shutter so it can pick any number it sees fit to limit the light coming to the sensor.