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Tech Tips

Tech Tips

OP Expert George Lepp tackles your technical photography questions in Tech Tips.


Sunday, July 1, 2007

Lenses For Panoramics

Perspective Control In Panoramics • Tripod Shopping • Megapixel Printing • Is What You See, What You Get?

I’m interested in trying panorama landscapes. In a class I recently took, the instructor said that the only way to get a good panoramic landscape is to use a PC (perspective control) lens. It’s a lot of money! Is there another way?
Participant at Photoshop World
Boston, Massachusetts



Monday, June 25, 2007

Digital ISO

How does the ISO setting affect the results in digital capture? My objective is to create a good-quality 16x20 print. Let’s say there’s no movement of the subject involved. How would the image look at ISO 100 compared to ISO 400?


Monday, June 18, 2007

Protection In The Field

While looking at the way plastic food wrap clings to just about anything, it occurred to me that this is a great way to protect one’s camera from the rain. It’s thin enough to allow normal operation of the switches and buttons.

 

 

 


Tuesday, June 12, 2007

Panoramas And Image Perspective

Why should I take a series of pictures and go to all the trouble of splicing them together in a computer to make a panorama, when all I have to do is take the photograph with a wide-angle lens and crop the top and bottom?

 

 

 


Monday, June 4, 2007

Printing From Film In The Digital Age

As of late, I don’t seem to be getting any quality prints from my slides. I’ve tried different labs and I’m still getting poor quality. The prints aren’t even close to what I’m seeing at the light table. Colors aren’t saturated, images aren’t sharp, etc. I’m still using the same Fujichrome Velvia and my techniques haven’t changed. My labs don’t seem to give me any answers. I’m shooting digitally as well, but is it possible that, in this digital age, printing processes have changed? Do labs not want to deal with slides anymore?

Friday, June 1, 2007

Close-Up Sharpness

The Truth Is In The Details • Make It A Hard Drive • Times Two • When To Use IS • Airports And Cameras • Res It Up

I’m using a high-resolution digital camera and just started photographing trees, bark, leaves, etc. Many of my photos don’t show good resolution in the small details, such as bark texture, the small veins in leaves or the edges of paint peels. I shot images today using a tripod, mirror lock and cable release, and I used an f/11 aperture on a 100mm f/2.8 macro lens. The image looks soft in several places. Is what I’m seeing a problem with digital capture?

Tuesday, May 1, 2007

Keeping It Simple

Sticking With Film • Simpler Digital • Accessories • Simpler Image Handling • Beyond Simple

Yes, the world is a complex place. Technology can be baffling. True, some people just seem to be dedicated to making things difficult, and I know, sometimes you’ve read this column and thought photography was getting to be too technical and full of "stuff." But what’s important is the end result: an image that communicates or motivates. There are many ways for you to achieve your photographic vision and it doesn’t have to be that hard.

Monday, March 26, 2007

When And How To Sharpen

Most professionals recommend sharpening a digital image before printing. I like a sharp image and use either a tripod or flash to improve the capture results. I feel using sharpening prior to printing makes the final print, in some cases, look unnatural. Why do the professionals use sharpening, and should I be using it?

Monday, March 19, 2007

Showing It Right

I’m giving a program to a large camera club next month. What information do I need to give them in preparation for my showing my images? I want it to come off looking professional, but I’ve never done this before.

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