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Photography Question 

Cynthia A. Jones
 

Film speed and poor images


 
 
Hi. Took a trip to the zoo last week on a partly sunny day. I took 4 rolls of film for photo class. Out of that ended up with a few good shots. (I am an amateur
photographer with higher aspirations.)
I shot a roll of 50 velvia of blue and green tropical birds and they turned out poorly. Any special hints on using velvia 50? Also on using the manual setting on my T90. 100 asa were the other 3 rolls. Thanks for ANY help you may offer.


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October 29, 2004

 

Alex Cabrall
  While I've owned my T90 for a while now, I have NO idea how to shoot with the lens off the "A" mark. Read over that hideously written manual again, and see what you can pick out from it, because the photos look poorly exposed. I personally shoot in P (not "Program", the one after it) because you can quickly change the type of exposure. Just curious, why were you shooting in manual mode?


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October 29, 2004

 

John P. Sandstedt
  Cynthia,

You indicate you shot Velvia [slide film, ISO 50] and three rolls of other ISO film. You didn't indicate what kind of lens you were using [how fast is the lens?]or whAT YOUR EXPOSURES WERE.

Velvia is terrific for great greens and yellows, especially when there is a lot of sunlight. The pictures provided suggest that there was NOT "an excess of light."

Therefore, I think you fell in to the trap that is more normally seen in beach or snow scenes. In these cases, the camera's metering sstem thinks it's seeing a middle tone subject [18% gray tone] and sets the metering ystem accordingly. The result is snow [or the beach] that has a gray cast. The solution is to open up the exposure 1 1/2 to 2 stops.

In the specific case of the shots you provided, the reverse problem appeared. The meter thinks it sees the middle tone. But, because the "scene" dark, you must close down 1 1/2 to 2 stops.

These adjustments can be made when you're in the manual mode obviously. But, I think the T-90 has the exposure adjustment feature, so you can make the needed change if you're in either aperture or shutter priority mode.

John


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October 29, 2004

 

Bob Cammarata
  This may sound too simple,...and please forgive me if I am way off on this, but was your camera set to DX, or was the ASA set manually.
It looks to me like your 50 Velvia was shot at 100 ASA.


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October 29, 2004

 
- Gregory LaGrange

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  agree with bob, not specifically with the Dx reading, but they just look underexposed to me. Or under developed if you did them yourself.
The A setting mark on a canon lens was for shooting with a shutter priority camera. you had an aperture priority camera, you take it off the A and set the aperture you wanted. It was also for shooting manually.


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October 29, 2004

 

Cynthia A. Jones
 
 
 
I used a 100 mm macro for the bird shots. I was quite close to them. I believe it was set at f/16. The T90 automatically sets the ISO. The reason I was using manual is to see if I can master the use of the T90.
I am trying to master the functions on manual setting. Would it have helped if I had set the aperture to f/4 or lower.


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October 29, 2004

 

Cynthia A. Jones
  I used a 100 mm macro for the bird shots. I was quite close to them. I believe it was set at f/16. The T90 automatically sets the ISO. The reason I was using manual is to see if I can master the use of the T90.
I am trying to master the functions on manual setting. Would it have helped if I had set the aperture to f/4 or lower.


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October 29, 2004

 
- Gregory LaGrange

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  it would help if that was the right exposure, but that may have been too far if those pictures were at f/16, with an identical shutter speed that is.


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October 29, 2004

 

Jon Close
  Agree with others that the photos look underexpsosed. Cynthia, you state the ISO was automatically set to 50, and that you set f/16. What shutter speed did you set? Did read the camera's meter scale in the viewfinder?


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October 30, 2004

 
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