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Minolta Vectis V - Sony E "MONSTER Adapter" Review

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neilt3 View Drop Down
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Post Options Post Options   Quote neilt3 Quote  Post ReplyReply Direct Link To This Post Topic: Minolta Vectis V - Sony E "MONSTER Adapter" Review
    Posted: 05 September 2016 at 10:52
Originally posted by youpii youpii wrote:

Thanks for sharing.
Is there a V2 planned with AF ?


Not likely !

It took a bit of persuading to get him to have the first batch made , as he is a private individual , rather than a business .

The fist one he made was for his own use and although he managed to get full aperture control and power supplied for manual focus , his attempts at any auto focus were inconsistent to a failure , so he gave up .

When the camera is switched off the lens retracts back to the infinity position , the same as both A-mount lens on an A mount body and the V mount lenses on a Vectis body .

So the communication is there , but just not functional for A/F .

As John was happy with just being able to use the lenses again , even with just manual focus , he gave up trying to get A/F to work as it wasn't worth his time and effort .
Plus there was no guarantee he would succeed .

I don't know if he ever had a second batch made , but everyone I put in contact with him after the initial batch was sold has heard nothing back , and my attempts to contact him since has failed .

So it looks like only the seven made will be the only seven to exist .

One of the after market adapter makers like Techart could most likely make a fully functioning one , but as the demand would likely be so low it would not be worth the time and resources .

The APS range of film cameras by Minolta , Canon , Nikon and Fuji was doomed to fail as it offered nothing over 35mm film , just a smaller frame size .
So not many people would have bought into this system , and with such a small range of lenses , there isn't much of a market to go after .
Only a few people that already have these lenses AND a Sony E mount camera would be interested , and seven of us already have one !

At least Nikon and Canon used a lens mount that was compatible with the existing 35mm SLR cameras so you didn't need to replace all your lenses .



see my photostream on flickr;
http://www.flickr.com/photos/neilt3/
C & C welcome.
 



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Post Options Post Options   Quote hokafai Quote  Post ReplyReply Direct Link To This Post Posted: 05 September 2016 at 09:24
Originally posted by youpii youpii wrote:

Thanks for sharing.
Is there a V2 planned with AF ?


I don't think so. But I do hope the guy who make this adapter will further develop it in the future.
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Post Options Post Options   Quote youpii Quote  Post ReplyReply Direct Link To This Post Posted: 04 September 2016 at 21:07
Thanks for sharing.
Is there a V2 planned with AF ?
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Post Options Post Options   Quote hokafai Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2016 at 17:27
for the vignetting problem of V 22-80mm, I find that it actually is the shade of the hood.

V 22-80mm with hood@22mm
by hokafai, 於 Flickr

After hood removed, strange vignetting problem is solved:

V 22-80mm without hood@22mm
by hokafai, 於 Flickr

Compare the actual size of APS film (25.1 x 16.7mm) with 135 film (36 x 24mm), the focal length of V 22-80mm in FF DSLR should be equivalent to 31-114mm, not 28-100mm theoretically. So, I mark the actual view angle of V 22-80mm in the photo that is taken by a real 28mm lens by using A7R2:

viewangle of V 22-80mm compare with real 28mm lens
by hokafai, 於 Flickr

Crop the photo according to the actual size of APS film:

Crop the image according to the actual size of APS film
by hokafai, 於 Flickr


Edited by hokafai - 03 February 2016 at 17:35
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Post Options Post Options   Quote neilt3 Quote  Post ReplyReply Direct Link To This Post Posted: 29 January 2016 at 00:42
Originally posted by hokafai hokafai wrote:

Originally posted by neilt3 neilt3 wrote:


Thank you for the update .
And thank you for posting some test shots .
It's a few months away before I will be buying an a7ii , so it's good to see some shots with it . Particularly ones from the 22-80mm .
The vignetting in this shot has me a bit confused though .
The odd shape looked as though it was caused by a baffle on the rear of the lens , but having had a look at one of mine , this can not be the case .
I think your adapter is of the second batch made , and Greg's and mine are of the first batch , but looking at your shots , they are still identical .

It's a bit of a disappointment , as it doesn't look like the lenses can be modified to remove the cause of the vignetting .
I will have to wait and see until I get an E-mount full frame , but they are very distinct , though cropping would still be acceptable .
Not sure how that will effect the resulting equivalent focal length .

Thank again .



Looking at the 2 photos that are taken by using 22-80mm set at 22mm, it is very strange that the lens seems rotate a bit more than the other lens when attaching to the monster adaptor. But despite this vignetting problem, and considering v lenses are originally designed for APS-H format (focal length x 1.27), actually I quite accept the performance of 22-80mm after cropped in photoshop or directly taking photos by using APS-C mode in A7RII.

You said you are concerning about the equivalent focal length after cropped. So, once I have time, I will take photos to compare the view angle of V22-80mm. Check whether it is equivalent to 24-100mm in 35mm format after cropped (NOT using APS-C mode in A7RII). It is quite an interesting project. haha.


Thanks , it will be interesting to see what the full frame equivalent focal length will be after the image has been cropped , compared to the field of view a full frame lens gives .
see my photostream on flickr;
http://www.flickr.com/photos/neilt3/
C & C welcome.
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Post Options Post Options   Quote hokafai Quote  Post ReplyReply Direct Link To This Post Posted: 27 January 2016 at 14:59
Originally posted by neilt3 neilt3 wrote:


Thank you for the update .
And thank you for posting some test shots .
It's a few months away before I will be buying an a7ii , so it's good to see some shots with it . Particularly ones from the 22-80mm .
The vignetting in this shot has me a bit confused though .
The odd shape looked as though it was caused by a baffle on the rear of the lens , but having had a look at one of mine , this can not be the case .
I think your adapter is of the second batch made , and Greg's and mine are of the first batch , but looking at your shots , they are still identical .

It's a bit of a disappointment , as it doesn't look like the lenses can be modified to remove the cause of the vignetting .
I will have to wait and see until I get an E-mount full frame , but they are very distinct , though cropping would still be acceptable .
Not sure how that will effect the resulting equivalent focal length .

Thank again .



Looking at the 2 photos that are taken by using 22-80mm set at 22mm, it is very strange that the lens seems rotate a bit more than the other lens when attaching to the monster adaptor. But despite this vignetting problem, and considering v lenses are originally designed for APS-H format (focal length x 1.27), actually I quite accept the performance of 22-80mm after cropped in photoshop or directly taking photos by using APS-C mode in A7RII.

You said you are concerning about the equivalent focal length after cropped. So, once I have time, I will take photos to compare the view angle of V22-80mm. Check whether it is equivalent to 24-100mm in 35mm format after cropped (NOT using APS-C mode in A7RII). It is quite an interesting project. haha.
 



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Post Options Post Options   Quote neilt3 Quote  Post ReplyReply Direct Link To This Post Posted: 26 January 2016 at 21:06
Originally posted by hokafai hokafai wrote:

Neil, thank you for your help. I already get the adapter from John. But as Hong Kong's weather is not good, I don't have chance to take outdoor photos by using my Vectis V lenses.

For reference, all Vectis V lenses on full frame body such as Sony A7R2 will have vignetting clearly visible except V 50mm f3.5 macro. Vignetting on 50mm macro is acceptable for me. Can see the photos I tested indoor here:

https://www.flickr.com/photos/hokafai/sets/72157663794177342


Thank you for the update .
And thank you for posting some test shots .
It's a few months away before I will be buying an a7ii , so it's good to see some shots with it . Particularly ones from the 22-80mm .
The vignetting in this shot has me a bit confused though .
The odd shape looked as though it was caused by a baffle on the rear of the lens , but having had a look at one of mine , this can not be the case .
I think your adapter is of the second batch made , and Greg's and mine are of the first batch , but looking at your shots , they are still identical .

It's a bit of a disappointment , as it doesn't look like the lenses can be modified to remove the cause of the vignetting .
I will have to wait and see until I get an E-mount full frame , but they are very distinct , though cropping would still be acceptable .
Not sure how that will effect the resulting equivalent focal length .

Thank again .



Edited by neilt3 - 26 January 2016 at 21:18
see my photostream on flickr;
http://www.flickr.com/photos/neilt3/
C & C welcome.
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hokafai View Drop Down
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Post Options Post Options   Quote hokafai Quote  Post ReplyReply Direct Link To This Post Posted: 26 January 2016 at 10:13
Neil, thank you for your help. I already get the adapter from John. But as Hong Kong's weather is not good, I don't have chance to take outdoor photos by using my Vectis V lenses.

For reference, all Vectis V lenses on full frame body such as Sony A7R2 will have vignetting clearly visible except V 50mm f3.5 macro. Vignetting on 50mm macro is acceptable for me. Can see the photos I tested indoor here:

https://www.flickr.com/photos/hokafai/sets/72157663794177342
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Post Options Post Options   Quote petesidewalk Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2016 at 01:30
Most welcome. I hope you enjoy your new adapter and Vectis lenses. I guess we could post our V lens photos in the other mount lenses forum, that could be interesting.

Greg
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Post Options Post Options   Quote neilt3 Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2016 at 00:58
Originally posted by Faithyeung Faithyeung wrote:

Thank you Neil and Greg


Your welcome .
What camera were you thinking of using it on ?
see my photostream on flickr;
http://www.flickr.com/photos/neilt3/
C & C welcome.
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Post Options Post Options   Quote Faithyeung Quote  Post ReplyReply Direct Link To This Post Posted: 09 January 2016 at 00:46
Thank you Neil and Greg
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Post Options Post Options   Quote petesidewalk Quote  Post ReplyReply Direct Link To This Post Posted: 08 January 2016 at 17:27
Originally posted by Faithyeung Faithyeung wrote:

Thanks Greg,
My stupid thought is whether I can turn the manual focus ring by force even without the adapter.
Or if I can just remove the gear from the internal motor, then I can the lens manually.
Any experience to share?



I had the very same thought when I was trying out the adapter for the first time. . Neil explained very well how the manual focus works (or doesn't work)on the V lenses. My latest thought is if I can cover one or more of the contacts to get the 17mm lens to manually focus with the aperture wide open. I tried the adapter on the NEX VG20 and it cycles the aperture while intermittently engaging, then disengaging the manual focus system. The lens would be great for video, even if used wide open.

Greg

Edited by petesidewalk - 08 January 2016 at 17:32
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Post Options Post Options   Quote neilt3 Quote  Post ReplyReply Direct Link To This Post Posted: 08 January 2016 at 16:57
Originally posted by Faithyeung Faithyeung wrote:

Thanks Greg,
My stupid thought is whether I can turn the manual focus ring by force even without the adapter.
Or if I can just remove the gear from the internal motor, then I can the lens manually.
Any experience to share?


Non of the Vectis lenses are focussed directly , so turn the focus ring as much as you want and nothing happens without power .

When you turn the focus ring , it turns a cog in a pick up unit .
That then sends an electrical signal to the motor that drives the focussing .

It's all focus by wire , the same as Sony E mount lenses .
Without manual focus being switched on , nothing happens .

Is the camera you want to use the 400mm reflex on apsc or full frame ?
Heavy vignetting occurred on full frame with a sharp cut off .
I have modified one of mine so that I think it will avoid that .
However I've yet to try it on a full frame camera .
see my photostream on flickr;
http://www.flickr.com/photos/neilt3/
C & C welcome.
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Post Options Post Options   Quote Faithyeung Quote  Post ReplyReply Direct Link To This Post Posted: 08 January 2016 at 14:28
Thanks Greg,
My stupid thought is whether I can turn the manual focus ring by force even without the adapter.
Or if I can just remove the gear from the internal motor, then I can the lens manually.
Any experience to share?
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