What is up with these weird patterns? [CLIP] at DVinfo.net

Julian Shapiro · April 15th, 2008, 05:45 PM

www.nitrofour.com/l50_1.wmv

Anyone know why those weird patterns are occurring? You can see them to the bottom left of the tree in the opening shot. This is a brand new Letus Extreme, using a Nikon 50mm 1.8 lens (upgraded Nikon mount). 1/48 shutter.

UPDATE:

No one seems to like to respond in this subforum, fortunately I happened to figure things out anyway:

It looks as if raising the f-stop and disabling the ND filter, as opposed to enabling ND filter and bringing f-stop all the way down to 1.8, causes the weird patterns in the image. Are old Nikons known for doing this? How does it make sense that going to a higher f-stop induces weird patterns?

Paul Frederick · April 15th, 2008, 07:43 PM

What was your f-stop on the Nikon? I get that when I stop the lens to anything higher than F4. Try to keep the Nikon wide open or at 2.8 or F4 the highest. It's the GG structure showing thru due to a high F-stop on the Nikon. Control the exposure using the NDs on your camera and/or adding NDs to the front of the Nikon via a matte-box.

Julian Shapiro · April 15th, 2008, 07:44 PM

Haha, great timing! I actually just posted that as my solution a couple of seconds ago! Thanks, anyhow!

April 15th, 2008, 05:45 PM	#1
Julian Shapiro Regular Crew Join Date: Mar 2008 Location: Las Vegas, Nevada Posts: 35	What is up with these weird patterns? [CLIP] www.nitrofour.com/l50_1.wmv Anyone know why those weird patterns are occurring? You can see them to the bottom left of the tree in the opening shot. This is a brand new Letus Extreme, using a Nikon 50mm 1.8 lens (upgraded Nikon mount). 1/48 shutter. UPDATE: No one seems to like to respond in this subforum, fortunately I happened to figure things out anyway: It looks as if raising the f-stop and disabling the ND filter, as opposed to enabling ND filter and bringing f-stop all the way down to 1.8, causes the weird patterns in the image. Are old Nikons known for doing this? How does it make sense that going to a higher f-stop induces weird patterns? Last edited by Julian Shapiro; April 15th, 2008 at 07:43 PM.

April 15th, 2008, 07:43 PM	#2
Paul Frederick Major Player Join Date: Nov 2003 Location: WestChazy, NY Posts: 291	What was your f-stop on the Nikon? I get that when I stop the lens to anything higher than F4. Try to keep the Nikon wide open or at 2.8 or F4 the highest. It's the GG structure showing thru due to a high F-stop on the Nikon. Control the exposure using the NDs on your camera and/or adding NDs to the front of the Nikon via a matte-box. __________________ www.paulfrederickproductions.com

April 15th, 2008, 07:44 PM	#3
Julian Shapiro Regular Crew Join Date: Mar 2008 Location: Las Vegas, Nevada Posts: 35	Haha, great timing! I actually just posted that as my solution a couple of seconds ago! Thanks, anyhow!