"stair stepping" at DVinfo.net

Frank Granovski · August 24th, 2002, 03:02 AM

Stair stepping..., I know what it is, but I am unable to get it to see what it looks like. Any suggestions?

Jeff Donald · August 24th, 2002, 04:30 AM

What camera are you using, Frank? If it has a sharpness control, try adjusting it. It can sometimes mask the edges. High contrast scenes are your best bet. I get them everytime I shoot a bird on a telephone wire, that is against a white sky or is somewhat back lit. On my product shots I get them on the edges of knives, forks and spoons. What are you using to view the footage? If I turn the sharpness, detail way down the edges will smooth out and you loose the stair stepping.

Jeff

Frank Granovski · August 24th, 2002, 05:24 AM

Thanks. I've tried the bird on the wire thing. I'll try it again, though. I have the DVL9500s and MX300s.

Don't get me wrong here. I'm trying to get stair stepping so that I can see what it looks like on my cams.

Don Donatello · August 24th, 2002, 04:17 PM

stair stepping is seen on a line ( edge of object) that runs at a angle ( like a 45% angle ) in your frame .... if you move in ( zoom in with editing software) the line will NOT be straight - it will look like the side view of STAIRS ( the kind you walk up/down = stair stepping) ..also you can see it easy in a CIRCLE.

the bird on wire will work, just make sure you compose the frame so the wire is running at a 45% angle in the frame NOT a 180% horizontal or 90% vertical ....

Frank Granovski · August 24th, 2002, 09:50 PM

Thanks. I'll try this tomorrow, and play it back on my TV, via AV-out. The reason why I want to do this is so that I can avoid stair stepping when I do some serious shooting. So far, I've been lucky.

Rob Lohman · August 26th, 2002, 02:05 AM

Frank, I think you'd be better off to watch the footage on a high
resolution monitor or on your NLE editing system. TV has a
tendency to more mask such issues. A monitor tends too be much
sharper (especially LCD screens, for example the one on my laptop)

Frank Granovski · August 26th, 2002, 02:23 AM

Thanks. Today I did try to get this, but couldn't see any S.S. I'll have to pop the tapes in my buddy's portable Sony deck tomorrow.

August 24th, 2002, 03:02 AM	#1
Frank Granovski Outer Circle Join Date: May 2002 Location: Hope, BC Posts: 7,524	"stair stepping" Stair stepping..., I know what it is, but I am unable to get it to see what it looks like. Any suggestions?

August 26th, 2002, 02:05 AM	#6
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	Frank, I think you'd be better off to watch the footage on a high resolution monitor or on your NLE editing system. TV has a tendency to more mask such issues. A monitor tends too be much sharper (especially LCD screens, for example the one on my laptop) __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors

August 24th, 2002, 04:30 AM	#2
Jeff Donald Warden Join Date: Mar 2002 Location: Clearwater, FL Posts: 8,287	What camera are you using, Frank? If it has a sharpness control, try adjusting it. It can sometimes mask the edges. High contrast scenes are your best bet. I get them everytime I shoot a bird on a telephone wire, that is against a white sky or is somewhat back lit. On my product shots I get them on the edges of knives, forks and spoons. What are you using to view the footage? If I turn the sharpness, detail way down the edges will smooth out and you loose the stair stepping. Jeff

August 24th, 2002, 05:24 AM	#3
Frank Granovski Outer Circle Join Date: May 2002 Location: Hope, BC Posts: 7,524	Thanks. I've tried the bird on the wire thing. I'll try it again, though. I have the DVL9500s and MX300s. Don't get me wrong here. I'm trying to get stair stepping so that I can see what it looks like on my cams.

August 24th, 2002, 04:17 PM	#4
Don Donatello Hawaiian Shirt Mogul Join Date: Nov 2001 Location: northern cailfornia Posts: 1,261	stair stepping is seen on a line ( edge of object) that runs at a angle ( like a 45% angle ) in your frame .... if you move in ( zoom in with editing software) the line will NOT be straight - it will look like the side view of STAIRS ( the kind you walk up/down = stair stepping) ..also you can see it easy in a CIRCLE. the bird on wire will work, just make sure you compose the frame so the wire is running at a 45% angle in the frame NOT a 180% horizontal or 90% vertical ....

August 24th, 2002, 09:50 PM	#5
Frank Granovski Outer Circle Join Date: May 2002 Location: Hope, BC Posts: 7,524	Thanks. I'll try this tomorrow, and play it back on my TV, via AV-out. The reason why I want to do this is so that I can avoid stair stepping when I do some serious shooting. So far, I've been lucky.

August 26th, 2002, 02:23 AM	#7
Frank Granovski Outer Circle Join Date: May 2002 Location: Hope, BC Posts: 7,524	Thanks. Today I did try to get this, but couldn't see any S.S. I'll have to pop the tapes in my buddy's portable Sony deck tomorrow.