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a9911 & 'adapted' lenses

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6tyNine View Drop Down
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Post Options Post Options   Quote 6tyNine Quote  Post ReplyReply Direct Link To This Post Topic: a9911 & 'adapted' lenses
    Posted: 09 October 2018 at 03:52
So.. I know very very very few people have the a9911 and even fewer a9911 owners have 'adapted' lenses. I also know a lot of people like to comment their ill informed opinion without any personal experience, thus not really adding anything of value to the conversation, but I just thought I'd post this to help out anyone in the future that has this problem (and remind me if i forget).

So I have the a9911 and a few non-'standard' lenses:
  1. Rokinon 14/2.8
  2. Leica 50/1.4 (leitax + JamesLaoT chip)
  3. Minolta 58/1.2 (m42 mount swap + JamesLaoT chip)

and since a week ago, the Voigtlander 40/2 (leitax + JamesLaoT chip)


it's a great lens in terms of size and smooth ergonomics. I really loved the 28/2 on the a100 perspective and this is pretty equivalent.

I like leave my drive mode in low speed continuous as I don't see any disadvantage to it compared to single. With the a900, the body recognized the chip's reported focal length and maximum aperature. The a9911 doesn't seem to recognize JamesLaoT chips (anyone else experience this?), but I can live with it, so as far as the body can tell there's no lens attached. Consequently in order to use these lenses, one must set "Shutter Release without Lens" to on.

With the a9911, drive mode set to continuous and an unrecognized lens attached, the a9911 freezes and becomes unresponsive after taking the a shot. One must remove the lens (the camera can sense the lens removal based on the lens retaining pin releasing) (or remove the battery) to reset the body. I thought Sony must have done something anti-competitive not unlike not supporting the 399 on-sensor phase detect autofocus points with Minolta Maxxum lenses, and buying this lens for this body was a total waste of $$, but after pulling my hair out and trying various things for days, I learnt that setting the drive mode to "single" remedies this Bug (which it definitely is). if Sony releases an updated firmware (0% chance) I hope this (along with the 399 OSPDAF points with Maxxum Lenses) is fixed.

That's all.
Sony α100, Sony 18-70mm f/3.5-5.6, Sony 75-300mm f/4.5-5.6
 



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sybersitizen View Drop Down
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Post Options Post Options   Quote sybersitizen Quote  Post ReplyReply Direct Link To This Post Posted: 09 October 2018 at 04:07
Slightly OT, I guess, but ... I've only seen a couple of lenses with that kind of mini-sized hood. Is there a particular term for those? Low profile maybe?
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stiuskr View Drop Down
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Post Options Post Options   Quote stiuskr Quote  Post ReplyReply Direct Link To This Post Posted: 09 October 2018 at 04:21
Since we're off topic (sorta) but "So.. I know very very very few people have the a9911..."

Have you looked at our 2018 Primary Camera poll?   
Rob Suits Jr.
a99M2 a99 a77 a700 KM7D|Min24/2.8 Min35/2 So50/1.4 So50/2.8 Min85/1.4G Tam90/2.8 Tam180/3.5|Tam17-50 CZ24-70G2 KM28-75D So70-200G1 So70-300G So70-400G1| SonyF60 AD200R2
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 09 October 2018 at 05:31
Why do you assume that it is the camera and not the lens/chip that is at fault?

I own an A99m2 and a Vivitar 13/2.8 (=Samyang 14/2.8) but no chipped lenses.
Why not follow me on Instagram? @Addy_101
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6tyNine View Drop Down
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Post Options Post Options   Quote 6tyNine Quote  Post ReplyReply Direct Link To This Post Posted: 09 October 2018 at 05:58
Originally posted by sybersitizen sybersitizen wrote:

Slightly OT, I guess, but ... I've only seen a couple of lenses with that kind of mini-sized hood. Is there a particular term for those? Low profile maybe?


Dome?
Sony α100, Sony 18-70mm f/3.5-5.6, Sony 75-300mm f/4.5-5.6
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6tyNine View Drop Down
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Post Options Post Options   Quote 6tyNine Quote  Post ReplyReply Direct Link To This Post Posted: 09 October 2018 at 06:00
Originally posted by stiuskr stiuskr wrote:

Since we're off topic (sorta) but "So.. I know very very very few people have the a9911..."

Have you looked at our 2018 Primary Camera poll?   


No, but now I have. Would be interesting if a99 & a9911 were separate poll choices. Grouping them together makes as much sense to me as grouping the a900 & a99 together.

Still, 33 is not all that many.
Sony α100, Sony 18-70mm f/3.5-5.6, Sony 75-300mm f/4.5-5.6
 



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6tyNine View Drop Down
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Post Options Post Options   Quote 6tyNine Quote  Post ReplyReply Direct Link To This Post Posted: 09 October 2018 at 06:01
Originally posted by addy landzaat addy landzaat wrote:

Why do you assume that it is the camera and not the lens/chip that is at fault?

I own an A99m2 and a Vivitar 13/2.8 (=Samyang 14/2.8) but no chipped lenses.


Not an assumption. Same result with no lens attached from the get go.
Sony α100, Sony 18-70mm f/3.5-5.6, Sony 75-300mm f/4.5-5.6
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Fred_S View Drop Down
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Post Options Post Options   Quote Fred_S Quote  Post ReplyReply Direct Link To This Post Posted: 09 October 2018 at 08:30
I can confirm the drive bug with the freeze continuous mode. It only works in single shot mode with manual lenses (unlike the A99m1)
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Macca View Drop Down
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Post Options Post Options   Quote Macca Quote  Post ReplyReply Direct Link To This Post Posted: 10 October 2018 at 19:55
You don`t need a chip on the A99ii as you can dial in the FL.Take the James Lao chips off and you should be able to use other drive modes.

Actually on checking my leitaxed Distagon 21mm 2.8 all the other drive modes work other than low continuous i.e. med, high and high + are all fine.

A bug right enough, not that I use the low setting anyway.
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Post Options Post Options   Quote Fred_S Quote  Post ReplyReply Direct Link To This Post Posted: 10 October 2018 at 21:10
Originally posted by Macca Macca wrote:

You don`t need a chip on the A99ii as you can dial in the FL.Take the James Lao chips off and you should be able to use other drive modes.

Actually on checking my leitaxed Distagon 21mm 2.8 all the other drive modes work other than low continuous i.e. med, high and high + are all fine.


Interesting, hadn't tried the higher speeds. That may take away one of my few dissapointments on the A99ii. Certainly with hand held close ups with MF lenses in poor light or windy conditions with flowers etc., I used to take a couple of shots 'hoping' for a sharp one. Thanks for that tip Macca have to try that!
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Post Options Post Options   Quote ffrolvaag Quote  Post ReplyReply Direct Link To This Post Posted: 13 November 2018 at 03:24
Picked up an a99ii yesterday. I have several adapted lenses but havenít tried them all yet. My camera currently has my Pentax 50mm f1.2. It is chipped and no issues so far, and the chip will register f1.1 on the camera.

Then I have a Minolta 58mm f1.2 unchipped, a Nikon 50mm ai-s chipped (milled down T2 chipped adapter) and a Porst 50mm f1.2 I need to complete a chipped m42 conversion (do you sense a theme here?). Since these conversions are all from various sources, they may be more or less successful. As I get more familiar, I will post my findings.

I will say the a99ii is a pretty big step up from my a900.
Franz



a900, a700, 5600hs, 1200 (w/MFC-1000), 3x converted f1.2 (Rokkor 58, Nikon 50 ais, and Pentax 50), 85mm f1.4, 100mm f2.8, 70-400G, and way too much other stuff to mention
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Bob J View Drop Down
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Post Options Post Options   Quote Bob J Quote  Post ReplyReply Direct Link To This Post Posted: 13 November 2018 at 09:40
My a99 (first version) does not work as well with the James Lao 16 fish chip as previous bodies did - occasionally get a whirring from the focus motor until I take a single shot, which seems to calm everything down. I got to the stage of using an unchipped adapter (no IBIS on the a99, but how much do you need to stabilize a fisheye?)

The James Lau chip seems to work fine on the LA-EA3 though, so I think it is just down to the camera not knowing the lens is MF only.
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Miranda F View Drop Down
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 13 November 2018 at 11:28
Originally posted by Bob J Bob J wrote:

My a99 (first version) does not work as well with the James Lao 16 fish chip as previous bodies did - occasionally get a whirring from the focus motor until I take a single shot, which seems to calm everything down. I got to the stage of using an unchipped adapter (no IBIS on the a99, but how much do you need to stabilize a fisheye?)

The James Lau chip seems to work fine on the LA-EA3 though, so I think it is just down to the camera not knowing the lens is MF only.


If the James Lao chip is based on a lens with AF (as I think most of them are), it makes the camera think AF is fitted when it is not. IMHO you should always turn off AF manually with a chipped adapter.
Miranda F & Sensorex, Sony A58, Nex-6, 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 . . .
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Post Options Post Options   Quote ffrolvaag Quote  Post ReplyReply Direct Link To This Post Posted: 13 November 2018 at 12:19
A quick update. My Nikon 50mm ai-s seems to work not at all under the same conditions as the Pentax. The chip in the Nikon will only will register only an aperture of f1.7. As a result, it doesnít want to do anything. I canít change the f-stop in camera, so it doesnít want to work at all. It will hunt, but I canít achieve focus that will allow me to take a photo. None of this was an issue on the a900. That body tries to af, but will register focus.

The Pentax chip on the other hand allows me change aperture in camera, will register focus points, and will take a photo as normal. I wonder what the difference in the chip is.
Franz



a900, a700, 5600hs, 1200 (w/MFC-1000), 3x converted f1.2 (Rokkor 58, Nikon 50 ais, and Pentax 50), 85mm f1.4, 100mm f2.8, 70-400G, and way too much other stuff to mention
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