FAQ FAQ  Forum Search   Events   Register Register  Login Login

Crazy? Zeiss 35mm f2.8 + Canon wide angle adapter

Author
windhorse View Drop Down
Senior Member
Senior Member

Joined: 11 February 2013
Country: Australia
Location: Mexico&Denmark
Status: Offline
Posts: 272
Post Options Post Options   Quote windhorse Quote  Post ReplyReply Direct Link To This Post Topic: Crazy? Zeiss 35mm f2.8 + Canon wide angle adapter
    Posted: 13 November 2017 at 19:34
While thinking about replacing my 20mm f2.8 pancake with a used 28mm f2 to use as a run and gun lens for filming 4K video in crop mode with the A7RII in combination with a Sony OEM 21mm ultra-wide converter for whenever a wider angle lens is required - I start to think maybe I can do something similar with the 35mm f2.8 Zeiss that I already have?

As far as I can find out the bayonet of the 21mm ulltra wide converter does not fit the Zeiss 35mm unless one is willing to modify it same as this adventurous guy did for his camera, which I am reluctant to attempt.

However, I do have a Canon WD-58 0.7x wide converter that is a nice piece of glass "gathering dust" in my cupboard. It has a male 58mm screw-in-type mount same as a filter thread. Hmmm... It is a bit heavy but not too much.

What do you reckon?

Is there any reason why this would NOT work as a wide angle converter for filming video via a step-up ring on the Zeiss 35mm that has a 49mm filter thread? Perhaps you may know of some other option that may be more effective? Or is there such exceptional synerygy of the Sony 21mm with the 28mm f2 that considering any other option is a waste of time?
 



Back to Top
QuietOC View Drop Down
Senior Member
Senior Member

Joined: 28 February 2015
Country: United States
Location: Michigan
Status: Online
Posts: 1654
Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 13 November 2017 at 19:43
From my limited experiments, front mounted wide converters seem to work generically. Though they are sensitive to the distance to the front element. They don't work on lenses with recessed front elements.

Edited by QuietOC - 13 November 2017 at 19:47
A65 30M 35 50 16-50 16-80 16-105 18-135 18-250 55-200 55-300
A5000 LA-EA1 16 20 16-50 18-55 55-210
Maxxum 70: 20 24 28 50 85 100M 135 28-105 28-135 35-70 35-105 35-200 70-210 75-300 100-300D
Back to Top
windhorse View Drop Down
Senior Member
Senior Member

Joined: 11 February 2013
Country: Australia
Location: Mexico&Denmark
Status: Offline
Posts: 272
Post Options Post Options   Quote windhorse Quote  Post ReplyReply Direct Link To This Post Posted: 13 November 2017 at 20:44
thanks, good to know!
Back to Top
Miranda F View Drop Down
Senior Member
Senior Member

Joined: 11 January 2014
Country: United Kingdom
Location: Bristol
Status: Offline
Posts: 2351
Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 14 November 2017 at 08:30
Originally posted by QuietOC QuietOC wrote:

From my limited experiments, front mounted wide converters seem to work generically. Though they are sensitive to the distance to the front element. They don't work on lenses with recessed front elements.


I've used quite a few front-mounted wide converters and results do seem to be mixed. Some combinations work well and some show awful CA. My guess is that they are sensitive to the angle the light rays enter the lens. The best one I have is a massive Sony video camera thing which is (just about) optically perfect but since it weighs more than most wide lenses and needs a strong MF lens to stand the weight, it doesn't get much use!

Some comapratively cheap wide and fish-eye converters work quite well so long as you don't pixel peep into the corners and aren't too fussed about the corners

To me there doesn't seem much point in the conversion you mention since the add-on lens is about the same size as a 20mm pancake lens and is less useful. Remember you can always use a little digital zoom on a decent wide prime to cover the longer lengths.
A900, A58, 5d, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
Back to Top
windhorse View Drop Down
Senior Member
Senior Member

Joined: 11 February 2013
Country: Australia
Location: Mexico&Denmark
Status: Offline
Posts: 272
Post Options Post Options   Quote windhorse Quote  Post ReplyReply Direct Link To This Post Posted: 14 November 2017 at 14:47
Looks like time for this space cadet to return to earth, since taking into consideration the good advice I have got here, using the old Canon wide angle adapter sounds quite doable - but perhaps not very sensible!

So another two questions:
(1) would you consider the image quality of the Sony 28mm f2 + Sony 21mm wide angle converter to be about the same as the 20mm f2.8 pancake lens or not?
(2) Does the FE 28mm f2 in crop mode deliver better image quality at f2.8 than the E 20mm f2.8 pancake?

The reason I ask is I want to upgrade to a lens with better image quality than the 20mm f2.8 pancake I am using as my go to lens for run and gun 4K video filming in crop mode on A7RII.

The best option for this is the new FE 16-35 f2.8 zoom but these days it is too expensive. That brings into consideration the various FE and E f4 wide angle zooms but to opt for one of them would cost a precious one (well, two thirds) aperture stop of light that I think I would soon come to regret.

There are plenty of nice used non E-mount+adapter f2.8 wide angle zoom options available for a reasonable price including A-mount, Canon and Sigma but as far as I can see all of them make noise while autofocussing that is picked up by an on camera mic, so are not suitable for run and gun video, and not all support face recognition and other useful features.

Taking this into consideration, I had thought the best option could be to upgrade from 20mm f2.8 pancake to 28mm f2 lens that if I understand right will perform just as seamlessly and silenty as the 20mm pancake but deliver better image quality, then for an additional $200 add the 21mm f2.8 wide angle adapter for the 28mm f2 so I have a wider angle AF option in my bag when needed. But maybe this is not such a good idea?


Back to Top
QuietOC View Drop Down
Senior Member
Senior Member

Joined: 28 February 2015
Country: United States
Location: Michigan
Status: Online
Posts: 1654
Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 14 November 2017 at 15:42
From what I seen the FE 28mm F2 doesn't have better image quality than the E 20mm F2.8 even without using a converter. They seem to have similar issues.

Maybe look at the Zeiss Batis 25/2 and 18/2.8--not cheap.

I would like nice 28 mm lens. I appreciate the Minolta/Sony AF 28mm F2.8 more as I compare it to others. I would like to try one of the Minolta 28mm F2's sometime. It is a bit weird since quite a few zooms are actually very good at 28 mm. Like the Minolta AF 28-135mm F4-4.5 is pretty great at 28 mm. The Sigma 30mm DN lenses are very good.





Edited by QuietOC - 14 November 2017 at 15:48
A65 30M 35 50 16-50 16-80 16-105 18-135 18-250 55-200 55-300
A5000 LA-EA1 16 20 16-50 18-55 55-210
Maxxum 70: 20 24 28 50 85 100M 135 28-105 28-135 35-70 35-105 35-200 70-210 75-300 100-300D
 



Back to Top
Miranda F View Drop Down
Senior Member
Senior Member

Joined: 11 January 2014
Country: United Kingdom
Location: Bristol
Status: Offline
Posts: 2351
Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 14 November 2017 at 15:47
Adapters usually decrease the IQ.

Do you need AF in video, or can you MF?
A900, A58, 5d, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
Back to Top
waldo_posth View Drop Down
Senior Member
Senior Member

Joined: 01 August 2012
Country: Germany
Location: Potsdam
Status: Offline
Posts: 2454
Post Options Post Options   Quote waldo_posth Quote  Post ReplyReply Direct Link To This Post Posted: 14 November 2017 at 17:10
Since you want to go wide in filming videos: Have you ever thought about using an anamorphic lens (these are usually mounted on a regular lens)?

This link might give you a more conrete idea.
"Stare, pry, listen, eavesdrop. Die knowing something. You are not here long." (Walker Evans)   http://www.flickr.com/photos/waldo_posth/
Back to Top
windhorse View Drop Down
Senior Member
Senior Member

Joined: 11 February 2013
Country: Australia
Location: Mexico&Denmark
Status: Offline
Posts: 272
Post Options Post Options   Quote windhorse Quote  Post ReplyReply Direct Link To This Post Posted: 14 November 2017 at 17:22
Unfortunately Miranda F for "run and gun" I do need AF in video nowadays - wasn´t always that way but...

Thanks QuietOC for your take on the 28mm compared to the 20mm that saves me not only time and effort that swapping one for the other would involve but also quite a bit of money. Yep I am also considering the Batis but as you say neither the 24 or 18 is cheap.


Edited by windhorse - 14 November 2017 at 17:27
Back to Top
Dyxum main page >  Forum Home > Equipment forums > Lens Talk > Adapters and converters

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.062 seconds.

Monitor calibration strip

Dyxum.com - Home of the alpha system photographer

In memory of Cameron Hill - brettania

Find us on Google+

Feel free to contact us if needed.