C-mount lenses on Super 8 cameras
Posted 31 July 2010 - 08:53 AM
Posted 31 July 2010 - 12:34 PM
Otherwise, gather as much information as you can from as many sources as you can on the merits of a particular piece of equipment before deciding on a verdict.
Try to search for professional evaluations on brand new samples of the lenses as were done in the trade magazines of the 70s such a Super8Filmaker, Movie Maker or Filmmaking.
Too often, an opinion is based on a maladjusted or otherwise defective sample of the lens and then it gets generalized to all such lenses.
Talking about equipment made in the 60s and 70s, it's a safe bet that a fixed focal length lens from a reputable manufacturer will usually perform better that any zoom.
Depth of focus is extremely critical in the super8 format and zooms and very wide angle lenses are often prone to back-focus errors that can seriously impact on sharpness.
This accounts for many instances of poor performance reported by users. Not to mention dirty lenses, lenses with internal fog, poorly seated lenses, maladjusted groundglass, etc...
If you're using one of the Beaulieu models with built-in gel filters (40 years old now!), I would seriously consider having them removed and the flange-focal distance re-adjusted. Use glass filters in front of the lens for any corrections.
Just my two pence.
Edited by Jean-Louis Seguin, 31 July 2010 - 12:35 PM.