Why th didderence between Auto/Manual using same settings (Page 2): It seems like most of the respondents are missing the point of the question. I use a Sony A65 and had an A100 before...

gideon Loc: Tampa Bay, FL

It seems like most of the respondents are missing the point of the question. I use a Sony A65 and had an A100 before that. With both cameras I also get totally different results when I shoot an image in auto and then shot the same subject in manual. The confusing thing is I used the EXACT SAME SETTINGS IN MANUAL AS THE CAMERA CHOSE IN AUTO. I believe the answer ceallachain is looking for is why the images look so different if the settings are supposedly exactly the same.

jerryc41 Loc: Catskill Mts of NY

gideon wrote:

It seems like most of the respondents are missing the point of the question. I use a Sony A65 and had an A100 before that. With both cameras I also get totally different results when I shoot an image in auto and then shot the same subject in manual. The confusing thing is I used the EXACT SAME SETTINGS IN MANUAL AS THE CAMERA CHOSE IN AUTO. I believe the answer ceallachain is looking for is why the images look so different if the settings are supposedly exactly the same.

Exif data would help.

ceallachain Loc: Cape May, NJ

That is exactly what I'm asking. Basically, if the camera is supposedly selecting the best options for taking the photo, why can't I use the same options and get the same picture taken by the camera's selected options? When I took the photos I wasn't too concerned about the fact that they might be washed out etc., actually I thought the camera's selections should have taken that into consideration after all it was making the "best" selections. When I saw the selected options I just determined it was GIGO. But I also thought, ok the photos I took in Manual mode would look exactly like those taken in Auto mode. Not the case, why not?

jerryc41 Loc: Catskill Mts of NY

ceallachain wrote:

That is exactly what I'm asking. Basically, if the... (show quote)

Post more pics with "store original" checked.

ole sarg Loc: south florida

The first thing to do is read your manual.

Next get a Canon G 12 Magic Lantern Guide. This takes the mfg manual and puts it into understandable English.

Next learn what ISO is and what it does.

Next learn about your metering settings and what they do.

Next begin to practice with one mode at a time for example learn TV (time value)and what it does then AV (aperture value)and what it does and after mastering these then go to Manual.

You have a rather sophisiticated camera. There is a lot to learn about it.

ole sarg Loc: south florida

The first thing to do is read your manual.

Next get a Canon G 12 Magic Lantern Guide. This takes the mfg manual and puts it into understandable English.

Next learn what ISO is and what it does.

Next learn about your metering settings and what they do.

Next begin to practice with one mode at a time for example learn TV (time value)and what it does then AV (aperture value)and what it does and after mastering these then go to Manual.

You have a rather sophisiticated camera. There is a lot to learn about it.

farnsworth52 Loc: W. Pa.

Recomend Brian Peterson's videos on Adorama webb sight These will take some of the magic out of the settings and get you going in the right direction. Of course you'll read the manual several times sand experiment with changes. By the way can you still eat the crabs and flounders there allot of memories in that area fishing with family years ago

peterg Loc: Santa Rosa, CA

May sound obvious, but check the EXIF data to verify how each pic was actually taken. I've had similar problems and discovered that I still had HDR bracketing on. Every 3rd pic was OK. Others were over & under exposed. Duh!

RMM Loc: Suburban New York

I'm guessing that you set speed and aperture, but left the ISO high. If you reloaded the pictures with "store original" checked, we could look at the EXIF data to see what you had set, or perhaps neglected to reset.

cabby dave Loc: UK

In addition to all the above the camera's processing software will also influence the appearance of the image. Another reason why we are encouraged not only to use manual or semi manual modes but, whenever possible to shoot in RAW. Only RAW images give us full control via suitable editing software over the final image.
I just fired off 3 images in auto, manual and RAW. All other settings were identical, f4 1/25 ISO250, evaluative metering and centre point focussing. The three images were roughly similar but Auto 4.76MB, Manual 4.62MB and RAW 22.8MB.
The camera's processor clearly deals with each image based on the user's setting.

Nevada Chuck

ceallachain wrote:

Ive always shot in Auto across the board. Been playing around with a recently purchased G12. I took some pictures using Auto and then decided to look at the Disp of those pictures to determine what the camera thought should be the ISO and F-Stop. Then went into Manual mode and set those settings. The results were quite surprising. No Manual mode picture matched up with what I took in Auto mode. Why not?

Shutter speed.

wilsondl2 Loc: Lincoln, Nebraska

I think that the differance is in the other controls you have in manual - Sharpness -how intense the colors are tweeking the white balance. The differant icons will change these to for the differant ones like they warm up the portrait settings a bit. Make the landscape a little cooler sharpen some etc. Then when you match the "triangle" settings the pictures will look differant. Working in aperture, shutter speed, and ISO is just part of the controls on the other side of the green auto. - Dave

RaydancePhoto

Here is are 2 pics taken with Sony RX-100. Not much difference in auto and manual settings. 1/40 f/1.8 ISO 125 on both

Auto everything

Manual everything

Screamin Scott Loc: Marshfield Wi, Baltimore Md, now Dallas Ga

As a number of people have said, the shutter speed is the culprit. In full auto mode, the camera is setting everything for you, aperture,shutter speed & ISO. In the Program, Av or Tv modes, the camera is setting some, but not all settings depending on the mode. When you change to manual mode, you have to select all 3 settings & you neglected to set the shutter speed mode & that is why you have the difference.....I'd suggest getting Bryan Peterson's book "Understanding Exposure" in order for you to better understand exposure settings...Sending the pics again with the "store original" will help us to nail down exactly what caused it though.

ceallachain wrote:

Ive always shot in Auto across the board. Been playing around with a recently purchased G12. I took some pictures using Auto and then decided to look at the Disp of those pictures to determine what the camera thought should be the ISO and F-Stop. Then went into Manual mode and set those settings. The results were quite surprising. No Manual mode picture matched up with what I took in Auto mode. Why not?

Screamin Scott Loc: Marshfield Wi, Baltimore Md, now Dallas Ga

Which "auto" mode did you use? that can make a difference...

gideon wrote:

It seems like most of the respondents are missing the point of the question. I use a Sony A65 and had an A100 before that. With both cameras I also get totally different results when I shoot an image in auto and then shot the same subject in manual. The confusing thing is I used the EXACT SAME SETTINGS IN MANUAL AS THE CAMERA CHOSE IN AUTO. I believe the answer ceallachain is looking for is why the images look so different if the settings are supposedly exactly the same.