A Site for Photographers by Photographers

Community > Forums > Mirrorless Digital Cameras > Technical > vertical lines in digital...

Featured Equipment Deals

Three Tips for Selling/Showing Your Photos in a Gallery Read More

Three Tips for Selling/Showing Your Photos in a Gallery

There are few industries as heart-wrenching as the fine art business. It's a six-car pileup at the intersection of art and commerce and the amount of opinion and hyperbole that is somehow labeled as...

Latest Equipment Articles

Triggertrap Mobile Review Read More

Triggertrap Mobile Review

Triggertrap is a great alternative to a camera remote that will turn your smartphone into a sophisticated shutter release. Read more about its many triggering modes!

Latest Learning Articles

Portrait Photography - Part II (Video Tutorial) Read More

Portrait Photography - Part II (Video Tutorial)

Learn the basics of Portrait Photography in Part II of this video tutorial, covering the essentials on timing, posing, and cropping.


vertical lines in digital photos

Jason Dunsmore , Nov 20, 2005; 02:17 a.m.

What is the cause of the vertical lines in this photo?

I was trying to get a sharp image, so I used a small aperature and a long exposure.

Thanks.

Responses

Mark U , Nov 20, 2005; 04:03 a.m.

What camera are you using? Are you getting this effect on all your photos, or just this one?

John Schroeder , Nov 20, 2005; 11:28 a.m.

The lines are not verticle but follow the contour of the glass. My idea is that you captured the imperfections the glass. The large depth of field created by the small aperture would allow for this.

Berg Na , Nov 20, 2005; 11:40 a.m.

The 'lines' appear to be caused by slight differences in brightness between adjacent columns in the sensor. This is typically seen in CMOS imagers although I don't know what camera you used. The variations do not change over time so the cameras that use CMOS sensors normally have a function that automatically subtract them out. If you continue to observe this artifact in your images, I'd send the camera back for calibration.

Peter White , Nov 20, 2005; 01:35 p.m.

They aren't vertical lines. What you're seeing is reflections of some sort. It's not anything related to the sensor.

Try the same shot with a film camera. I suspect you'll get the same thing.

Jason Dunsmore , Nov 20, 2005; 02:44 p.m.

The photo was taken with a Canon 20D. You were right John and Peter, they are just reflections. Although I have seen vertical lines that look similar to the ones in this photo before. It was with a cheaper Sony MVC-CD500 camera. Thanks for the information Berg, that answered my question.

John Schroeder , Nov 20, 2005; 05:44 p.m.

What is even more amazing is that I recognize this as a Galileo thermometer.

Berg Na , Nov 20, 2005; 05:59 p.m.

Jason - I suspect the regular banding seen in this photo is not due to some kind of optical reflections, but I won't try to dispute your conclusion.


Vertical banding artifacts

Jason Dunsmore , Nov 21, 2005; 12:51 a.m.

Yep, it's a galileo thermometer.

The reason I think they're reflections is because the lines aren't exactly vertical, and I can see similar reflections when I look at the thermometer. It's deceptive though.

Back to top

Notify me of Responses