43
votes
Accepted
Is there a difference between taking a far shot on a 50mm lens and a close shot on a 35mm lens?
If you shoot from the same position with both lenses, then taking the 35mm lens and cropping it to the same angle of view of the 50mm lens will give you pretty much the same picture, other than the ...
- 173k
23
votes
Would it be possible to make a 36×36 mm "full frame" sensor?
That's not correct. Look at this picture:
The green rectangle is a 36x24 sensor. The green circle, which has a diameter of 43.3mm, is the minimal light spot needed for that size. The blue square is ...
- 1,761
22
votes
Is there a difference between taking a far shot on a 50mm lens and a close shot on a 35mm lens?
The proof is in the pudding – the focal lengths are not exactly the same as yours, but the differences are obvious...
- 843
20
votes
Is there a noticeable difference in image quality between Micro Four Thirds and APS-C entry-level DSLR cameras?
A great deal here depends on when you (generally) take pictures.
In particular, with bright light, a smaller sensor makes little or no difference in quality. As the light level drops, however, a ...
- 19.2k
17
votes
Why did they ever make smaller than full-frame sensors?
The first mainstream applications for electronic image sensors (be it Image-Orthicons, Vidicons, Plumbicons, or CCDs, or CMOS active pixel sensors, be it analog-electronic or digital workflows) were ...
- 7,152
16
votes
Is there a noticeable difference in image quality between Micro Four Thirds and APS-C entry-level DSLR cameras?
In practice this is not a concern unless you have very demanding needs.
Now I would preface this by saying that my view of "image quality" is that many people, particularly beginners, tend to make ...
- 6,385
15
votes
Is there a difference between taking a far shot on a 50mm lens and a close shot on a 35mm lens?
Thanks to my schwifty skills in Inkscape, the rotation here is slightly off but the following shows exactly what you're comparing. These are the fields of view of a Nikon 35mm (inner) and a Nikon 50mm ...
- 1,442
14
votes
Accepted
How can a super tiny iPhone 6 Plus lens produce significant DOF?
Many older or cheaper phone cameras use a "fixed focus" lens. ie it is always set to focus a specific distance away from the camera. This is usually set to the "hyperfocal distance", ie everything ...
- 1,674
13
votes
I am getting a complete vignetting on my new canon 6D but only with the 18-270mm lens
From the "Recommended For" tab of the Tamron web page for that lens:
Tamron Di-II lenses are engineered expressly for digital SLR cameras with image sensors commonly referred to as APS-C, measuring ...
- 1,133
13
votes
Accepted
focal length and sensor width of a phone
The Redmi 6A uses the Sony Exmor IMX486 sensor, which is a 1/2.9" format sensor. Note that "1/2.9 inch" is merely a name, not its diagonal dimension (see: Why is a 1" sensor ...
- 31.6k
11
votes
Accepted
Is there a "special look" to images from large sensors that can't be replicated with a smaller one?
Many of the frequently touted reasons for larger sensors producing better images, more subject isolation, lower noise, better dynamic range, all assume you keep the f-stop constant, i.e. you use f/2.8 ...
- 118k
11
votes
Would APS-C be better for shooting wildlife?
Crop sensors are indeed used for wildlife to get more reach without sacrificing megapixels. And, you can get closer images without spending as much money. Sure, you could crop, but then your printing ...
- 446
11
votes
Why do lenses for larger sensors tend to have shallower angles?
This is simply where the market is converging to at the moment. The typical kit lens is still 18-55mm on an APS-C sensor but most people find wider angle more useful, so some manufacturers made a few ...
- 102k
11
votes
Is the Nikon D7200 a significant upgrade to a Canon Rebel T3?
In low-light settings the quality is just not good, blurry. I really just do travel photography so don't have time to mess with settings if I am capturing scenes of people out at night in a busy ...
- 173k
10
votes
Would it be possible to make a 36×36 mm "full frame" sensor?
Is it possible and why it has not been done yet ?
Not necessarily. A 24x36mm sensor will easily fit in an image circle that's too small for a 36x36mm sensor. Specifically, a 24x36mm sensor requires a ...
- 31.6k
10
votes
Accepted
Would APS-C be better for shooting wildlife?
Not necessarily.
The APS-C sensor merely crops the image that would have been captured on a full frame sensor, so you end up with what you'd get if you used a full frame and cropped in post (see: ...
- 33.3k
10
votes
Accepted
Do full frame sensors have a higher exposure?
The full frame sensor will not be brighter under the same exposure conditions (Same light in scene, same focal length and f-number, same exposure time, etc.). It will collect more light, but it will ...
- 173k
10
votes
Accepted
Is there a noticeable difference in image quality between Micro Four Thirds and APS-C entry-level DSLR cameras?
I'm sure you've heard the old saying, "The best camera is the one you have with you."
Some of my favorite photos are shots I've taken with my three-year-old Samsung Galaxy Note 4, a phone with a ...
- 216
9
votes
Accepted
Does sensor size impact the diffraction limit of a lens?
Does sensor size impact the diffraction limit of a lens?
No.
Therefore, if the sensor is larger, and the photo-sites for the same resolution can also be larger, does this influence the diffraction ...
- 173k
9
votes
Is there a noticeable difference in image quality between Micro Four Thirds and APS-C entry-level DSLR cameras?
There is without a doubt a noticeable difference. The smaller sensor size, as you mentioned, gives a Micro Four-Thirds camera a disadvantage when it comes to low-light performance. The real question ...
- 102k
9
votes
Why did they ever make smaller than full-frame sensors?
Big sensors cost more than small sensors for more-or-less the same reason that big TVs cost more than small TVs. Compare a 30-inch TV and a 60-inch TV (about 75cm and 150cm, if you prefer). ...
- 800
8
votes
Accepted
How to achieve full-frame look/view on a crop-sensor - without changing the lens?
You can't.
What we refer to as equivalence is only an approximation. You can't put a different lens on a crop sensor camera and get the same shot with the same field of view from the same shooting ...
- 173k
8
votes
Why does it seem like large sensors are necessary for good low-light performance?
Why does it seem like large sensors are necessary for good low-light performance?
Because for the same amount of light passing through a lens a larger sensor will collect more of it.
Your tire size ...
- 173k
8
votes
Do f-stops scale with sensor size the way focal length does?
No, f/stop does not vary with sensor size.
Nor does focal length vary with sensor size. The lens remains totally unaffected by the sensor.
HOWEVER, the field of view that the cropped sensor can ...
- 12.8k
8
votes
Should sensor size trump all other aspects when deciding between cameras?
Your intended usage for the camera is what should trump all other considerations. Once you have determined what you want to do with the camera, then you can proceed to consider the factors that have ...
- 173k
8
votes
Why don’t low light cameras just use bigger sensors?
With a large sensor
the sensor is more expensive (the production cost of a sensor grows at least as fast as its physical area).
the whole device is bigger, and requires bigger lenses, that add to ...
- 18.3k
7
votes
Accepted
Why is FF sharper than crop body for the same framing of the same object?
It is primarily the difference in the varying subject distances and magnification ratios and how they interact with the resolution limits of the lens.
The effects of diffraction and sensor blooming, ...
- 173k
7
votes
How does "crop factor" relate to the area of a sensor compared to full frame?
Crop factor is expressed as a ratio of the linear measurements of a sensor compared to a 36x24mm 35mm film frame or a full frame sensor. This is because a sensor exactly half as large as another will ...
- 173k
7
votes
Should sensor size trump all other aspects when deciding between cameras?
Cameras, like cars, are for using. Would you buy car A, if car B were more comfortable to use? Not unless car A did something you absolutely had to have that car B could not.
Now there's no way for ...
- 6,385
Only top scored, non community-wiki answers of a minimum length are eligible