Jump to content

Using Diopter/Close-Up Filters. Does diameter have to correlate with lens diameter?


Recommended Posts

Hello,

I might invest in some diopter/close-up filters for macro work. For my application, I will be utilizing a mattebox that can accept circular filters with step up/other adapters, or 4x5.6. But I've only seen them in circular format. I'm sure there's a scientific reason for this, and practical cost reason as well.

Regardless of the drop-in method.. On Schneider's website, it seems they are only offered in one large size. This leads me to believe that you can use a diopter that is larger than the outer diameter of your lens?- or Would it change the amount of magnification (or anything else for that matter) if there is a diameter difference between the filter and camera lens? I just want to make sure if I invest in a large diopter(s), it won't matter whatever camera lens I use it with. And if it does, what I should be cognizant of.

 

Link to comment
Share on other sites

  • Sustaining Member

Diopters are basically magnifying lenses of different strengths. That’s why they are round. The most common sizes are 138mm, 4.5”, 5” and 6” round. It really doesn’t matter if the diopter has a larger diameter than the taking lens. As long as the taking lens is centered on the diopter, it will work. You just don’t want it smaller than the lens due to coverage over the taking lens.

G

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

Forum Sponsors

Abel Cine

Tai Audio

New Pro Video - New and Used Equipment

Gamma Ray Digital Inc

Broadcast Solutions Inc

Visual Products

Film Gears

Wooden Camera

Metropolis Post

Glidecam

Serious Gear

VidGear.com - Broadcast Video Warehouse

FJS International

CineLab

Cinematography Books and Gear



×
×
  • Create New...