Comparison of two cameras.
Mar 24, 2013 20:15:40 #
As some of you know I am going to be taking video and stills of upcoming soccer games with two different cameras at the same time. One is a Lumix 16 mp with a 45-200 lens and the other is a Lumix 10 mp bridge camera with 7.4-88.8 (12X zoom). I wanted to compare the reach of each. I took the same shot with each camera at maximum zoom and they appear to be very close. What I am curious about is why do focal length of the first (200 mm) and the focal length of the second (89 mm) yield the same results?
Larry
Larry
Mar 24, 2013 20:29:12 #
You'll want to investigate this further, but I'm certain your "bridge" camera uses a smaller sensor, resulting in more "apparent" magnification with consideration to the focal length of the lens. For example: an 80mm lens on a bridge camera may give a similar result to a 200mm lens on a DSLR. Can be confusing, but there it IS! :lol:
Mar 25, 2013 02:34:37 #
Danilo wrote:
You'll want to investigate this further, but I'm certain your "bridge" camera uses a smaller sensor, resulting in more "apparent" magnification with consideration to the focal length of the lens. For example: an 80mm lens on a bridge camera may give a similar result to a 200mm lens on a DSLR. Can be confusing, but there it IS! :lol:
To be more specific, the sensor on the GH3 is 5.89 the size of the sensor on the FZ50. For a side-by-sige comparison, see:
http://snapsort.com/compare/Panasonic_Lumix_DMC-FZ50-vs-Panasonic_Lumix_DMC-GH2
Mar 25, 2013 07:10:55 #
lighthouse
Loc: No Fixed Abode
Larger sensor 17.3x13.0mm vs 7.2x5.3mm
Mogul wrote:
quote=Danilo You'll want to investigate this furt... (show quote)
Mar 25, 2013 11:30:05 #
Danilo wrote:
You'll want to investigate this further, but I'm certain your "bridge" camera uses a smaller sensor, resulting in more "apparent" magnification with consideration to the focal length of the lens. For example: an 80mm lens on a bridge camera may give a similar result to a 200mm lens on a DSLR. Can be confusing, but there it IS! :lol:
I agree with you. My Canon SX30 which is a bridge camera has a focal length marked around the lens as you look at the first element of 4.3-150.5mm which is the actual focal length. On the outside barrel of the lens as it zooms out it shows "35mm equivalent" numbers of 24 to 840mm. This a 35 X lens at full zoom. On a 35mm camera 150mm would only be about 3X.
As others have indicated this a sesor related issue.
Mar 25, 2013 17:49:05 #
lighthouse
Loc: No Fixed Abode
CAM1017 wrote:
I agree with you. My Canon SX30 which is a bridge camera has a focal length marked around the lens as you look at the first element of 4.3-150.5mm which is the actual focal length. On the outside barrel of the lens as it zooms out it shows "35mm equivalent" numbers of 24 to 840mm. This a 35 X lens at full zoom. On a 35mm camera 150mm would only be about 3X.
As others have indicated this a sesor related issue.
As others have indicated this a sesor related issue.
You are discussing 2 different things here.
A 35x zoom bridge camera is not 35 times life size.
All it means is that the largest focal length is 35x the smallest focal length for that lens. 24 x 35 = 840.
A 12mm to 420mm would also be a 35x zoom.
And a 60mm to 840mm would be a 14x zoom.
A 150 mm lens is not any times anything. It has no zoom.
A 50 to 150mm would be 3x and 50mm is supposedly the approximation of our eyesight. I think this is the line you are drawing, but it is different terminologies.
Mar 25, 2013 19:18:27 #
lighthouse wrote:
You are discussing 2 different things here. br A 3... (show quote)
Not sure what your point is. My point was to discuss two different situations. A 150mm lens non-zoom compared to a 50mm lens would be considered to be a 3x closer as I understand it. What I described on the 35X bridge camera is all true information right from Canon and is shown on the camera and published in their manual.
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.