by Adam Wilt: Sony F5 / F55 Optical Low-Pass Filters at

Go Back   DV Info Net > The DV Info Network > DV Info Net Recent Articles

DV Info Net Recent Articles
Our authors welcome your feedback.

Thread Tools Search this Thread
Old March 2nd, 2014, 07:57 AM   #1
Obstreperous Rex
Join Date: Jan 2001
Location: San Marcos, TX
Posts: 26,735
Images: 513
Sony F5 / F55 Optical Low-Pass Filters

Originally Posted by Adam Wilt
OLPFs suppress high frequency detail that can cause aliasing and moiré, and most cameras have an OLPF carefully chosen to match the characteristics of their sensor’s native resolution (Nikon has a good writeup on OLPFs here). But when a sensor is scanned out in a non-native way, or at a different resolution, the OLPF’s characteristics may no longer be suitable: if it’s too strong, you’ll get an overly soft image; if it’s too weak, you’ll get excessive detail, aliasing, and moiré. For example, the Canon 5D Mk II’s OLPF is optimized for 21 Megapixel stills capture, but it’s woefully inadequate when that camera is used for 2 Megapixel HD capture. Folks like Mosaic Engineering make add-on OLPFs for the 5D Mk II and other cameras to better filter the image for HD capture, but these add-on filters add bulk and change the optical path length of the light behind the lens, so focusing marks shift.
Read the full article at Sony F5 / F55 Optical Low-Pass Filters at DV Info Net

Search DV Info Net | DV Info Net Sponsors | A Decade of DVi | ...Tuesday is Soylent Green Day!
Chris Hurd is offline   Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

Omega Broadcast
(512) 251-7778
Austin, TX

(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

(800) 238-8480
Glendale, CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The DV Info Network > DV Info Net Recent Articles

Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -6. The time now is 05:21 PM.

DV Info Net -- Real Names, Real People, Real Info!
1998-2015 The Digital Video Information Network