Drop-in Filter Adapter for Canon EF Lens to Nikon Z Body

[mike_halliwell]

https://meikeglobal.com/en-gb/products/dron-in-filter-mount-adapter-ef-z?variant=43570270535908

They really aught to do a Nikon F to Z adapter with a drop in filter slot.

The flange difference between Canon EF and Nikon F is only 2.5mm

Edited November 21, 2022 by mike_halliwell

[ShunCheung]

You need to keep in mind that all Canon EF lenses, except for a few manual-focus ones, have an AF motor built in, and their aperture is controlled electronically through an aperture motor inside the lens. Therefore, any adapters to mount Canon EF lenses are essentially hollow tubes with a bit of electronics to connect from the lens side to the camera body side. There may be some IC chips to convert the electronic protocols, especially when you mate a Canon lens to a Nikon body. But nevertheless, those are hollow tubes so that it is relatively easy to add a filter slot.

The problem with the FTZ is that a lot of the older Nikon F-mount lenses use a mechanical aperture control. Therefore the FTZ needs to have a motor hidden inside to drive the mechanical shaft to control the lens' mechanical aperture. In particular, the FTZii losses the tripod foot so that it is even tighter inside. It is a lot more complicated to add a slot so that you can insert a filter in the middle of the FTZ without interfering with the hidden aperture motor and mechanical connections.

As more and more long teles in the native Z mount are introduced, the Z lens system is maturing so that further FTZ development may slow down or even come to an end. A few years ago I would like to have an FTZ that can only work with E (and P) F-mount lenses so that we no longer need the complex aperture motor and mechanism inside the FTZ, but now the need to adapt old lenses is diminishing.

[mike_halliwell]

17 minutes ago, ShunCheung said:

It is a lot more complicated to add a slot so that you can insert a filter in the middle of the FTZ without interfering with the hidden aperture motor and mechanical connections.

Absolutely!

I think there are enough Nikon E lenses in F mount that it would make it profitable for someone like Meike to make an FTZ-E with filter slot.

I'm thinking of the great 300mm and 500mm PF, the 105mm f1.4, 28mm f1.4 and that monster 100-300mm f2.8, no filter drawer in any of those, and they have quite big filter threads up front. 

And it's much easier to rotate a CPL from the lens throat area rather that mess with the lens hood at the front.

[mike_halliwell]

Slightly cheaper, but no filter slot.

https://7artisans.store/products/7artisans-ef-nz-lens-mount-adapter-with-auto-exposure-auto-focus-canon-ef-ef-s-lens-to-canon-eos-r-mirrorlescamera-的副本/

Note, link wording is quirky/wrong, this goes to Nikon Z