DPReview.com is closing April 10th - Find out more

Will Depth of Field be greater on a Rectilinear or Fisheye lens?

Started 11 months ago | Questions
adrianserwin New Member • Posts: 1
Will Depth of Field be greater on a Rectilinear or Fisheye lens?

At the same focal length (e.g. 14mm), will the fisheye provide a greater depth of field in comparison to a Rectilinear lens?

I’ve been using the Sigma 14-24mm and at 14mm, with a 6” housing I’m not getting enough depth of field to create sharp photos above and below in split shots, even with my aperture set on f20/22

If I buy a fisheye lens - e.g. Canon 8-15mm, will this be less of a problem, or will it be the same? Is the only way to increase depth of field with a bigger dome?

Thanks!

ANSWER:
This question has not been answered yet.
Barmaglot_07 Contributing Member • Posts: 633
Re: Will Depth of Field be greater on a Rectilinear or Fisheye lens?

A fisheye lens will help, yes, but a six-inch dome is far too small for good splits regardless. There are 12", 17" and 18" domes available specifically for split shots, but they cost a pretty penny - https://www.mattysmithphoto.com/shop/equipment/custom-split-shot-ports/

 Barmaglot_07's gear list:Barmaglot_07's gear list
Sony a6300 Canon EF-S 60mm f/2.8 Macro USM Sony E 30mm F3.5 Macro Sony E 18-200mm F3.5-6.3 OSS LE Sony E 10-18mm F4 OSS +5 more
Keyboard shortcuts:
FForum MMy threads