I’m frustrated

looking for small sensor size

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Hi I'm looking for a camera with a small sensor size. So I can zoom in a lot. That's the only thing that matters! (for me)

The best thing I've found is the Sony DSC-HX100V with a sensor small as 1/2.3" (6.16mm x 4.62mm) and 30x zoom (810 mm).

But if I click to campare sensor sizes to look for a smaller one, it says there are some cameras with 1/3.6" (4.8x3.6mm) sensors, but do not show wich ones.

http://snapsort.com/cameras/Sony-HX10...

So what I want to know is: wich cameras have a 1/3.6" (4.8x3.6mm) Sensor.

Many thanks for every help in advance!

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Alex Black (Official Rep) August 22, 2011 13:52

Hi John, you must be the first person I've talked to who wants a camera with a smaller sensor :)

Can you explain to me a bit more about that? I'd have thought that if you wanted to zoom in a lot you'd just want a camera with the most optical zoom possible.

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Hi John, you must be the first person I've talked to who wants a camera with a smaller sensor :) Can you explain to me a bit more about that? I'd have thought that if you wanted to zoom in a lot you'd just want a <a href="http://snapsort.com/recommend#!lens=zoom&no-magic=1">camera with the most optical zoom possible</a>.

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John Smith August 22, 2011 14:16

Hi Alex

Here is a in depth explenation:
http://www.cambridgeincolour.com/tuto...

But in a nutshell:
If you have 800mm on a full format sensor you get 800m "magnification"
if you have 800mm on a APS-C sensor (Crop Factor = 1.5) you get 1200mm "magnifaction"
And so on. The smaller the sensor is, the bigger the crop factor and the "zoom" is.

Easy as that.

So I'm looking for a camera (or a camcorder) with the smallest sensor and biggest optical zoom. ;)

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Hi Alex Here is a in depth explenation: http://www.cambridgeincolour.com/tutorials/digital-camera-sensor-size.htm But in a nutshell: If you have 800mm on a full format sensor you get 800m "magnification" if you have 800mm on a APS-C sensor (Crop Factor = 1.5) you get 1200mm "magnifaction" And so on. The smaller the sensor is, the bigger the crop factor and the "zoom" is. Easy as that. So I'm looking for a camera (or a camcorder) with the smallest sensor and biggest optical zoom. ;)

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Alex Black (Official Rep) August 22, 2011 14:26

Hi John, I think I understand what you're getting at.

However, while this is an issue for DSLRs and mirrorless cameras, this is not an issue for point and shoot cameras. E.g. the focal lengths stated on snapsort.com are "35 mm equivalent" and as such are directly comparable.

(For DSLRs and mirrorless cameras though, lens focal lengths are usually stated is real focal length, not 35mm equivalent, so in that case you do need to take sensor size into account).

If one point and shoot has a focal length of 800mm, and another has a focal length of 825mm, the one that has 825mm has more magnification than the 800mm one regardless of sensor size.

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- Alex Black (Official Rep) August 22, 2011 14:33
  
  So 800mm on the HX100v is the same as 800mm on a full frame DSLR such as the Nikon D700, and equivalent magnification to a 533mm lens on a crop body DSLR such as the Canon T2i.
  
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- Alex Black (Official Rep) August 22, 2011 15:09
  
  Also, larger sensors are almost always better.. even if you had less magnification because of a larger sensor, you'd have better image quality and detail, and probably be able to crop the image to gain the same magnification.
  
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- John Smith August 22, 2011 21:19
  
  OK I didn't get that the 800mm on a Point and Shoot really meant 800mm equivalent to 35mm...
  
  Oh mine... I thought it would be sooo great :D I see... my big formula I've used is only valid for dslr...
  
  So Alex... you see what I want to do is:
  I want to photograph something really far away and finally have the highest resolution image of that object as possible!
  
  At the moment i see two options:
  
  Canon 7D 18MP (sensor crop factor 1.6) with 800mm lens and 2x Teleconverter
  
  or
  
  Sigma SD1TT 15.3 MP (sensor crop factor 1.74) with 800mm lens and 2x Teleconverter
  
  (I have my information from this page:)
  http://en.wikipedia.org/wiki/Image_se...
  
  So what do you think? Is there any equipment that would be better than one of these options... Like a camcorder with 60x magnification.... ? Or a mini telescope? Anything?
  
  The use of it is just for that what I told you above...
  
  I would really appreciate your help with this question Alex :D
  
  And thanks for the other answers as well! You helped a lot.
  
  And sorry for my bad english... :D
  
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- Alex Black (Official Rep) August 22, 2011 23:51
  
  Hi John, I'm not really sure I'm afraid. A 800mm lens with a 2x teleconverter on a DSLR sounds like you'll get tons of magnification.
  
  As far as which would be better, the Sigma SD1 or the Canon 7D, I'm not sure. It looks to me like the SD1 has a 1.5x crop sensor (23.5mm x 15.7mm) very similar in size to the Canon 7D (22.3mm vs 14.9mm).
  
  The Sigma does use a foveon sensor, and they claim it captures 46MP images, so if getting more detail/resolution is important it might have an advantage.
  
  See: http://www.sigmaphoto.com/shop/sd1-ds...
  
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- Alex Black (Official Rep) August 24, 2011 18:50
  
  Also, you made me realize we don't have the Sigma SD1 on our site, so we got it added: http://snapsort.com/cameras/Sigma/SD1
  
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- John Smith August 25, 2011 20:24
  
  Glad I could "help" ;D
  
  btw: now the camera to use (for my project) would probably be the sony alpha 77...
  
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Hi John, I think I understand what you're getting at. However, while this is an issue for DSLRs and mirrorless cameras, this is not an issue for point and shoot cameras. E.g. the focal lengths stated on snapsort.com are "35 mm equivalent" and as such are directly comparable. (For DSLRs and mirrorless cameras though, lens focal lengths are usually stated is real focal length, not 35mm equivalent, so in that case you do need to take sensor size into account). If one point and shoot has a focal length of 800mm, and another has a focal length of 825mm, the one that has 825mm has more magnification than the 800mm one regardless of sensor size.

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