Hi All,

I've seen a little conversation about using the Canon 8-15mm, with and without 1.4TC and/or crop mode.

Just wondering if there's a source for the two zoom gear 3d print files (with and without TC)?

Any links to files or people who know would be appreciated.

Cheers,
Dan

37 minutes ago, foetusmachine said:

Hi All,

I've seen a little conversation about using the Canon 8-15mm, with and without 1.4TC and/or crop mode.

Just wondering if there's a source for the two zoom gear 3d print files (with and without TC)?

Any links to files or people who know would be appreciated.

Cheers,
Dan

3d design for Canon 8-15 nauticam gear:

https://makerworld.com/models/778776

Edited 12 hours ago12 hr by Dave_Hicks

Thank you.

Presumably, I can also chop 19mm out of this if I didn't want to use the 1.4TC?

Edited 12 hours ago12 hr by foetusmachine
More information

There's also posts on the forum about using the Sony 2x with the 8-15 along with the metabones adapter on the forum. This gives full diagonal fisheye through to about the equivalent of a 14mm lens, very flexible arrangement. I have one adapted to an OM-1 and it provides great flexibility and the optics are excellent. With this setup you have camera - Sony 2x - Metabones - lens.

Do you print your own gears or do you get someone to print them for you? One of our forum members, @Gudge has printed zoom gears for me, he's based in Perth if you need someone to print them. He may have a design already.

I'm keeping an eye out for a good priced Sony 2x. Would be interesting to try.

I print my own gears. I've just adapted the model that @Dave_Hicks shared above to be more like my current one I used on my Seafrogs housing. This doesn't require the rubber/TPU adapter and i've found it to work well. This is the standard gear, with TC extension. I'll still need to test it once I get the housing.

Edited 9 hours ago9 hr by foetusmachine
with/without typo

6 hours ago, foetusmachine said:

I've seen a little conversation about using the Canon 8-15mm, with and without 1.4TC and/or crop mode

It's one of most debated here, actually. As Chris wrote, it's plenty of threads. Every time we discuss about wide angle and wet lens, this combination pops up as a valid, travel friendly, alternative.

Just search "8-15mm" or "kenko".

Ciao

I can add that I have both Sony 1.4x and 2x TCs and used them on Sony A7R5. I did few dives with the 1.4x TC (a lot now with the 2x), but stopped using the 1.4x, since I did not see an improvement of IQ compared to the 2x TC...

(IQ with both 1.4x and 2x is a softer compared to the plain 8-15mm, but not worse compared to WACP-C/28-60mm)

Wolfgang

Edited 5 hours ago5 hr by Architeuthis

35 minutes ago, Davide DB said:

Just search "8-15mm" or "kenko".

I'm fortunate enough to own a Sony 1.4x that goes well with the metabones. I understand that it's just slightly thinner, flange to flange, than the Kenko. Sony 17mm vs Kenko 19mm?

Has anyone brought any clarity to the IQ optimization using the Sony 1.4xTC and the ideal N120 port extension?

Just now, Architeuthis said:

I can add that I have both Sony 1.4x and 2x TCs and used them on Sony A7R5. I did few dives with the 1.4x TC (a lot now with the 2x), but stopped using the 1.4x, since I did not see an improvement of IQ compared to the 2x TC...

(IQ with both 1.4x and 2x is a bit softer compared to the plain 8-15mm, but not worse compared to WACP-C/28-60mm)

Wolfgang

What extension configuratiosn do you use?

15 minutes ago, foetusmachine said:

What extension configuratiosn do you use?

Here are the extensions that I use with the Nauticam N120/100 35.5mm adapter and the 140mm domeport (ignore the Canon 100mm macro, this is just a part of a bigger table comprising multiple ports and domeports). Usually I add up smaller extensions to give the full length (e.g. 25mm plus 35mm for the Sony 2x TC):

P.S.: I am using the Metabones V adapter...

Edited 5 hours ago5 hr by Architeuthis