A Pretty Subject! - Page 2

Marvin Mattelson · 01-03-2004, 12:15 AM

Pat,

The further back you stand, the less distortion you get. Distortion is the function of distance and not focal length. A wide angle lens and a telephoto lens will give identical distortion as long as the subject to camera distance remains the same.

If you stand several feet in front of someone who is holding their palm out towards you, (like a traffic cop) you'll see the size of their hand is much larger than the size of their head. If you move twenty feet back you'll see the size relationship is much more normal looking, therefore less distorted.

The advantage of the longer lens is that when you stand farther away the subject will occupy a larger portion of the image giving more detail and better resolution.

Your photo also suffers from overexposure in the lights. The tones are blown out to white. There is far too great a contrast between the lights and the shadows. Move her farther away from the light source (the window). You may have to give your photo a little more exposure.

Good luck!

Michele Rushworth · 01-03-2004, 01:15 PM

In addition to the comments posted above regarding lens/distance distortion I would also add that pose number one (which you said was your favorite) doesn't flatter her as much as it could, in my opinion.

Her hair is lovely but it is hidden in that shot. Also, her hand, pressing against her cheek like that, is distorting her face.

Michele Rushworth · 01-03-2004, 01:28 PM

Here's an illustration of what Marvin was describing. It's a matter of perspective.

Marvin Mattelson · 01-03-2004, 02:19 PM

Sweet

John Zeissig · 01-03-2004, 07:13 PM

Hi Pat,

I was just reflecting on what Marvin and Michele had to say, and a thought occurred to me. You might try taking the shot from a greater distance to minimize the distortion due to the optics of the camera. Then zoom in to the portion of the image you want with a digital zoom. I don't have any experience with digital cameras, but I notice that they usually specify a digital zoom and an optical zoom. The distortions are all produced in the optics. With any luck, you should be able to find a combination of "distance from the subject" and "digital zoom" that will allow you minimize the optical distortion, but will still leave you enough resolution to get a satisfactory shot to use for your painting.

Just a thought, but it might be worth doing a little experimenting.

Regards

John

Michele Rushworth · 01-03-2004, 08:40 PM

Digital zoom doesn't give you anything more than just cropping in on a section of an image and making it look bigger, unfortunately. It doesn't give you any more detail or pixel data in the area you want to concentrate on, like optical zoom would.

Optical zoom will actually give you the full number of pixels in the frame that you've set your camera for, just on the area you've zoomed in to. Digital zoom will give you only some portion of that total pixel data.

For example, if you use digital zoom to close in on an area that is in the upper one quarter of the normal frame, you will only end up with one quarter of the pixels in your image that you would have had if you had used optical zoom.

I never use digital zoom. If I just want to crop in on an image and print it large, I do that later in Photoshop.

Marvin Mattelson · 01-03-2004, 08:41 PM

A digital zoom is essentially usless since it only serves to enlarge the pixels. An optical zoom on the other hand would suffice to enlarge the image.

Michele Rushworth · 01-03-2004, 08:42 PM

Marvin, you and I must have hit "submit reply" at exactly the same second.

Marvin Mattelson · 01-03-2004, 09:10 PM

Great minds etc.

Patricia Joyce · 01-04-2004, 01:37 AM

I'm back to my niece's house to have her sit for me again. Draw from life, draw from life, draw from life.....my mantra. I'll try the camera shots again, this time moving her further from the window and positioning myself further from her for less distortion. Marvin, you reminded me of the lessons I struggled with in photography class two years ago. I pulled out the old textbook. I may not get the detail I would like with the limited optical zoom lens, but I should be able to avoid distortion and gather enough info for reference.

This has been a very good learning experience. Seems the more I learn the more I learn I need to know!!!!!! Geesh!!

Soon, you will see some of my efforts, as I am working on this project all day today and tomorrow. Nothing else I would rather do - I love being in my studio...

Night