I have a used 18mm F4 contax lens and want to use some filters especially polarizing and neutral density. Prefer to invest in a filter holder system (HiTech; Lee; or Cokin X-Pro)rather than individual screw in filters. My concern is vignetting. What has worked for you?
The lens uses a 70 to 86mm step up ring and from photos it looks like the 70mm part slips over the barrel. I see on the HiTech filter website that they have a 70mm with three set screws desigend for rear use on view cameras but also says that it can be used if front threads have been damaged. The Contax lens does not have any front threads at all. While more expensive than Lee or Cokin X-Pro holders, the HiTech (70mm rear adapter plus holder)looks like it might work. Any opinions/experience?
The lens uses a 70 to 86mm step up ring and from photos it looks like the 70mm part slips over the barrel. I see on the HiTech filter website that they have a 70mm with three set screws desigend for rear use on view cameras but also says that it can be used if front threads have been damaged. The Contax lens does not have any front threads at all. While more expensive than Lee or Cokin X-Pro holders, the HiTech (70mm rear adapter plus holder)looks like it might work. Any opinions/experience?