How to modularily mount a projection lens

[Akira]

I have some news, based on some pre-production samples I just tested:
I have discussed with Rafcamera to add a filter mount into their M65x1 camera adapter, to accept 40.5mm standard filter mount, so as to allow ND (or other filters) to be mounted inside. As I noticed due to the speed of thoses projection lenses, ISO could not be lowered enough to avoid over-exposure.

Soon available in quantities (so far) for Nikon, Sony-E and mft (micro 4/3)

Wow, I would want such a function for DSLR lens to m4/3 body adapters, too!

[Dr Klaus Schmitt]

Wow, I would want such a function for DSLR lens to m4/3 body adapters, too!

This could be done by modifying such adapter, the M42 or Nikon one is relatively long and could be done,
using a technique which Nikon and others (Leitz, Kilfitt, Astro,...) have already developed


(c) Kenrockwell.com

Here was an announcement about such a solution:
http://www.43rumors.com/new-deo-tech-drop-in-filter-adapter-coming-soon/
and here is the product for sale:
https://www.bhphotovideo.com/c/product/1190855-REG/deo_tech_deoowlng2fe1_owl_nikon_g_lens.html


(c) Deo Tech

Here is their product video: https://www.youtube.com/watch?v=XL4JuXaCsc4

[Erik Lund]

Interesting product! Thanks for sharing links

[Dr Klaus Schmitt]

Interesting product! Thanks for sharing links

I bought it and it is on my way to me, will report about it, once I had the chance to test ;-)

[Akira]

Klaus, thank you very much for the link!  I ordered Nikon G to MFT adapter that was exactly what I wanted!

Upon its arrival, I will assess its quality to see if it is worth buying a special filter for my purpose. 

[Dr Klaus Schmitt]

Klaus, thank you very much for the link!  I ordered Nikon G to MFT adapter that was exactly what I wanted!

Upon its arrival, I will assess its quality to see if it is worth buying a special filter for my purpose. 

Excellent, do let us know Akira!!

[Akira]

Excellent, do let us know Akira!!

Most definitely!  Apparently it can take about a month to be in stock, shipped and delivered, so I'm looking forward to your initial review!

[Dr Klaus Schmitt]

Most definitely!  Apparently it can take about a month to be in stock, shipped and delivered, so I'm looking forward to your initial review!

On my return from Sweden, the filter slide in adapter has arrived. Looks very well made, will test it tomorrow, weather permitting

[Akira]

On my return from Sweden, the filter slide in adapter has arrived. Looks very well made, will test it tomorrow, weather permitting

Great!  Please check out the infinity focus with the "usual" Nikkor lens as well.

[Dr Klaus Schmitt]

This could be done by modifying such adapter, the M42 or Nikon one is relatively long and could be done,
using a technique which Nikon and others (Leitz, Kilfitt, Astro,...) have already developed


(c) Kenrockwell.com

Here was an announcement about such a solution:
http://www.43rumors.com/new-deo-tech-drop-in-filter-adapter-coming-soon/
and here is the product for sale:
https://www.bhphotovideo.com/c/product/1190855-REG/deo_tech_deoowlng2fe1_owl_nikon_g_lens.html


(c) Deo Tech

Here is their product video: https://www.youtube.com/watch?v=XL4JuXaCsc4

Unpacked it, did some quick indoor mechanical test. Looks well made, nothing blocking, all working. Filter slider
sits a bit lose, hold by two ball bearings, but won't fall off.

[Akira]

Unpacked it, did some quick indoor mechanical test. Looks well made, nothing blocking, all working. Filter slider
sits a bit lose, hold by two ball bearings, but won't fall off.

Sounds promising.  Did you buy the Nikon F to m4/3 adapter?  I haven't yet received any info on the stock or the shipment from B&H.

[JCDowdy]

I have been following the development of the Owl filter adapter for some time. 

I have refrained from ordering one pending some independent reviews so I am eager to hear how it performs!

[Dr Klaus Schmitt]

Sounds promising.  Did you buy the Nikon F to m4/3 adapter?  I haven't yet received any info on the stock or the shipment from B&H.

Yes, the Nikon version I have (for my UV-Nikkor 105mm)

[Dr Klaus Schmitt]

I have been following the development of the Owl filter adapter for some time. 

I have refrained from ordering one pending some independent reviews so I am eager to hear how it performs!

The problem is to have 52mm filters with low frame height, the only downside it has (so far). If it is really light tight, I have to test (and I do have some doubts, as many normal adapters, even the most expensive ones, do leak...). Unfortunately not that much time currently availbale for such.

Step adapters cannot be mounted, it has to be a low height 52mm filter frame! (So a Baader-U filter for instance needs to be remounted)

[Akira]

Thanks, Klaus, for the details of the adapter.  Hope the filter I intend to use is of a thin-frame type.