Why do two 10 mp cameras take different size photos?
Dec 29, 2011 12:18:18 #
hornblower
Loc: bayfield, wi
Have an Olympus E410 and Lumix FZ28, both 10 MP, take similar photo, but one takes it at 1.7 MP and other 3.1MP. Both on automatic. Probably stupid question, but why?
Panasonic Lumix
Olympus E410
Dec 29, 2011 12:50:09 #
Most cameras allow you to shoot at different resolutions, like "basic" and "fine." Maybe the resolutions are different (since the makes are different) or they are not set to equivalent resolutions. Compression rates could also be different.
Did the lighting change that much between the shots, or are the cameras recording the light/color that differently?
Did the lighting change that much between the shots, or are the cameras recording the light/color that differently?
Dec 29, 2011 12:53:34 #
Not just camera settings, but also the actual subject makes a difference. Given a 15mp camera, for example, one scene might produce an image of 14mp, and another just 8 or 9mp- it depends on the CONTENT. Lots of color and contrast, and big bright objects = big file.
Dec 29, 2011 12:54:04 #
lighting must have changed cause the car in the drive is no longer in the second image. :)
Sensor size is going to play a role in the size of the overall image.
Sensor size is going to play a role in the size of the overall image.
Dec 29, 2011 12:56:13 #
MWAC wrote:
lighting must have changed cause the car in the drive is no longer in the second image. :)
I didn't even notice the car - was captivated by the light.
Dec 29, 2011 13:07:44 #
artlover
Loc: NM
My Nikon 12 MP camera has scene settings from 640 up to the
top of 4000X3000. It shows the MP rating for each resolution.
BTW" the camera angle was different for the cameras. I found out cropping areas that were darker helps brighten the pic. I only use
Picasa for my changes. They are generally, simpler work.
I shoot and shoot outdoors. Let the camera do the work and
make adjustments on the PC later.
top of 4000X3000. It shows the MP rating for each resolution.
BTW" the camera angle was different for the cameras. I found out cropping areas that were darker helps brighten the pic. I only use
Picasa for my changes. They are generally, simpler work.
I shoot and shoot outdoors. Let the camera do the work and
make adjustments on the PC later.
Dec 29, 2011 13:08:49 #
Dec 29, 2011 13:13:21 #
artlover
Loc: NM
Your shots were taken at Tucson. Checked your bio and saw
Tucson and the houses, etc, looked like the SW. Sun was very
bright orange on the adobes.
Here in SWNM. Have taken #### of sunsets here in past 6 1/2
years. Been on this site since mid Nov 2011.
Tucson and the houses, etc, looked like the SW. Sun was very
bright orange on the adobes.
Here in SWNM. Have taken #### of sunsets here in past 6 1/2
years. Been on this site since mid Nov 2011.
Dec 29, 2011 13:22:16 #
hornblower
Loc: bayfield, wi
Thanks for the responses. Did look at the camera settings, and look similar, but they are different cameras. Lighting was similar in the morning, but Olympia seems to shoot less light. You are right in terms of not getting the camera angle right, since that was the reason for the missing car! Would a better camera shoot more MP? Or more MP comes with more light? Much thanks for the comments. Will shoot same picture with the sun up and see number of MP from the two cameras.
Dec 29, 2011 16:02:08 #
Don't get too caught up in the MP hoopla. It can be important if you want very large prints, but I don't think it will effect the average person.
The MP count is simply the number of pixels, or "dots" that make up the photo, width x height. If the photo is 2,000 x 3,000 then there are 6 million pixels that make the photo. Mega means million, so it would be 6 MP.
The MP count is simply the number of pixels, or "dots" that make up the photo, width x height. If the photo is 2,000 x 3,000 then there are 6 million pixels that make the photo. Mega means million, so it would be 6 MP.
Dec 30, 2011 06:52:37 #
snowbear wrote:
I didn't even notice the car - was captivated by the light.
MWAC wrote:
lighting must have changed cause the car in the drive is no longer in the second image. :)
I didn't even notice the car - was captivated by the light.
Looks like the car is still there, at least a portion of the front wheel. Easy to check what time the shots where taken though.
The cameras can be set to record the picture at various quality = MP used to record the shot. I believe that under the same lighting condition both can produce images that look near identical. Its the joy of photogrph v/s point and shoot.
Dec 30, 2011 07:30:17 #
slightly different focal lengths for the two cameras? difference in actual focal length (i.e., did you tweak the telephoto slightly in one of them)you shot them with? The change in shooting angle would produce a slightly different perspective.
Dec 30, 2011 09:19:27 #
Jpeg images are compressed and the method used takes into account the difference in color in adjacent areas of the picture. The image with the smaller ratio of contrast between light and dark areas should produce a smaller jpeg file.
On one camera with the MP setting constant you will see different size files.
On one camera with the MP setting constant you will see different size files.
Dec 30, 2011 10:50:59 #
Sounds to me like the difference is in the compression rate selected on each camera. For the Olympus, go to this site, download the manual, then check out page 51 on how to change the compression rate---it's easy.
http://www.olympusamerica.com/files/oima_cckb/EVOLT_E-410_Instruction_Manual_EN.pdf
It really doesn't matter if you're shooting automatic, programmed, or manual because the camera will always take photos based on the compression rate that has been selected. That's why you need to know how to set it so that each photo or series of photos will print out at the size you want them to. For the Lumix, do a search for it and download the manual from Panasonic's website, then look in the index for compression rate and follow the procedure. Again, this should be a simple process because of the ability to change pixel size for each and every photo you take. Good luck.
PS---if you're not already doing it, learn to use your viewfinder to compose shots rather than using the LCD screen because you'll get way more mileage out of your batteries.
http://www.olympusamerica.com/files/oima_cckb/EVOLT_E-410_Instruction_Manual_EN.pdf
It really doesn't matter if you're shooting automatic, programmed, or manual because the camera will always take photos based on the compression rate that has been selected. That's why you need to know how to set it so that each photo or series of photos will print out at the size you want them to. For the Lumix, do a search for it and download the manual from Panasonic's website, then look in the index for compression rate and follow the procedure. Again, this should be a simple process because of the ability to change pixel size for each and every photo you take. Good luck.
PS---if you're not already doing it, learn to use your viewfinder to compose shots rather than using the LCD screen because you'll get way more mileage out of your batteries.
Dec 30, 2011 11:44:43 #
hornblower
Loc: bayfield, wi
Thanks. Took two more photos in the afternoon with more light and little changed in terms of pixels. Going to the website on both cameras to at least make them the same. Any recommendation on what to set them at for regular use?
Lumix
Olympus
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