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E-Mount (NEX) adapters

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    Posted: 19 January 2021 at 14:44
Originally posted by Snegren Snegren wrote:

Originally posted by addy landzaat addy landzaat wrote:

So, the adapters are brass? Like a Leica


Most adapters are aluminium alloy. Sometimes with stainless steel or chromium/nickel plated steel bits on the lens bayonet side. None of my adapters are brass.

None of my the mounts on my cheap adapters are in the least bit magnetic. The only steel parts are the screws holding the mount face on.

Interesting, I just found several Sony and Minolta A-mount lenses and the 600si have ferrous mount faces, but all the Sony E-mount camera and lens mounts I tried are non-magnetic.

Edited by QuietOC - 19 January 2021 at 15:19
Sony A7RIV NEX-5T HVL-F45RM LA-EA5 Metabones-IV Sigma MC-11 Yongnuo EF-E II TLT ROKR MD-NEX KR-NEX DA-NEX
Minolta Maxxum 600si
Pentax Q7 5-15 15-45/2.8 8.5/1.9 11.5/9 AF-P/Q
 



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Post Options Post Options   Quote Snegren Quote  Post ReplyReply Direct Link To This Post Posted: 19 January 2021 at 14:20
Originally posted by addy landzaat addy landzaat wrote:

So, the adapters are brass? Like a Leica


Most adapters are aluminium alloy. Sometimes with stainless steel or chromium/nickel plated steel bits on the lens bayonet side. None of my adapters are brass.
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Post Options Post Options   Quote Petrochemist Quote  Post ReplyReply Direct Link To This Post Posted: 19 January 2021 at 12:39
Originally posted by pegelli pegelli wrote:

I bought this Pixco branded M42 to E-mount Helicoid adapter. It's adjustable from 27 to 59 mm.

Contrary to what it says in the ad it allows infinity focus with all my M42 lenses

Also I have not observed any vignetting on Full Frame (A7Rii) using a 50 and a 200 mm lens. More testing to follow but so far it seems an excellent adaptor with better performance than advertised.

You were lucky.
The first M42-MFT helicoid I brought SHOULD have just managed infinity focus from the quoted length range, but the listing didn't specifically claim it could. On arrival I found it couldn't reach infinity with a 135mm lens let alone shorter ones which see the effect of extension more.

On all subsequent helicoid purchases I've ensured the add quotes infinity focus if that's the way their likely to be used. The extra cost for this has been negligible.
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2021 at 22:38
So, the adapters are brass? Like a Leica
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2021 at 22:01
Originally posted by addy landzaat addy landzaat wrote:

What material are they when they are not steel? The mounts for sure are not aluminium.

I believe most mounts are coated brass like keys. None of them are magnetic.

My Minolta 28-135 is taken apart right now, and its mount is definitely brass. There is a machined ring on the backside that shows the base material.

Edited by QuietOC - 17 January 2021 at 22:06
Sony A7RIV NEX-5T HVL-F45RM LA-EA5 Metabones-IV Sigma MC-11 Yongnuo EF-E II TLT ROKR MD-NEX KR-NEX DA-NEX
Minolta Maxxum 600si
Pentax Q7 5-15 15-45/2.8 8.5/1.9 11.5/9 AF-P/Q
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Post Options Post Options   Quote Tricky01 Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2021 at 21:33
Originally posted by addy landzaat addy landzaat wrote:

i do not think it is that important. Maybe stay away from the really cheap Chinese stuff. That means, look into Kipon, K&F and the like. These will be simple, but more or less fine.

The electronic ones like the Sigma MC-11 will surely be better, but it might not be what you need. (FYI: Harrison Camera has a used MC-11)
Thanks Addy, picked up a K&F one which seems to be a new edition claiming it has reduced internal reflections. Will find out later this week when it arrives- and hopefully the lens too!
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2021 at 21:26
What material are they when they are not steel? The mounts for sure are not aluminium.
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2021 at 20:37
Originally posted by addy landzaat addy landzaat wrote:

Originally posted by QuietOC QuietOC wrote:

The dumb adapters all seem to be made from the same parts. I heard the actual metal manufacturer is named RJ.
I guess most decent steel ones come from the same manufacturer. Recent K&F adapters are made in aluminium, not steel.

Have you had steel ones? The only steel parts in the adapters I've had were the screws.
Sony A7RIV NEX-5T HVL-F45RM LA-EA5 Metabones-IV Sigma MC-11 Yongnuo EF-E II TLT ROKR MD-NEX KR-NEX DA-NEX
Minolta Maxxum 600si
Pentax Q7 5-15 15-45/2.8 8.5/1.9 11.5/9 AF-P/Q
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2021 at 20:05
Originally posted by QuietOC QuietOC wrote:

The dumb adapters all seem to be made from the same parts. I heard the actual metal manufacturer is named RJ.
I guess most decent steel ones come from the same manufacturer. Recent K&F adapters are made in aluminium, not steel.
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2021 at 15:18
The best thing about the Sigma MC-11 is that it seems to be the right thickness. All the other adapters are purposely made short which is fine for unit-focus primes, but causes optical problems with other lenses. I should measure my adapters thicknesses. The Metabones IV definitely seems off.

The cheapest EF adapter I have is the Yongnuo EF-E II. Yongnuo has been updating the firmware, and it is actually getting pretty good. It supports native emulation.

The dumb adapters all seem to be made from the same parts. I heard the actual metal manufacturer is named RJ.

Edited by QuietOC - 17 January 2021 at 15:23
Sony A7RIV NEX-5T HVL-F45RM LA-EA5 Metabones-IV Sigma MC-11 Yongnuo EF-E II TLT ROKR MD-NEX KR-NEX DA-NEX
Minolta Maxxum 600si
Pentax Q7 5-15 15-45/2.8 8.5/1.9 11.5/9 AF-P/Q
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 17 January 2021 at 07:02
i do not think it is that important. Maybe stay away from the really cheap Chinese stuff. That means, look into Kipon, K&F and the like. These will be simple, but more or less fine.

The electronic ones like the Sigma MC-11 will surely be better, but it might not be what you need. (FYI: Harrison Camera has a used MC-11)
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Post Options Post Options   Quote Tricky01 Quote  Post ReplyReply Direct Link To This Post Posted: 16 January 2021 at 22:51
Apologies for not reading through all 15 pages, but it's anyone able to recommend a cheap and dumb canon EF (lens) to Sony FE (body) adaptor. I don't need any fancy electricals, it's for a fully manual Laowa lens. Just reading around the subject and issues with light leak and internal reflections. I want something solid that can practically live on the lens.

Advice greatly appreciated - never owned a non sony A or FE lens before!
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Post Options Post Options   Quote woodrim Quote  Post ReplyReply Direct Link To This Post Posted: 03 August 2020 at 16:13
Originally posted by pegelli pegelli wrote:

I bought this Pixco branded M42 to E-mount Helicoid adapter. It's adjustable from 27 to 59 mm.

Contrary to what it says in the ad it allows infinity focus with all my M42 lenses

Also I have not observed any vignetting on Full Frame (A7Rii) using a 50 and a 200 mm lens. More testing to follow but so far it seems an excellent adaptor with better performance than advertised.


I have several M42 to E helicoids and have been using them for years with no issues. No problem with infinity. I have also various other helicoids of shorter length which I have dedicated to lenses from rangefinders and even an oscillograph lens.
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woodrim
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Post Options Post Options   Quote pegelli Quote  Post ReplyReply Direct Link To This Post Posted: 02 August 2020 at 16:41
I bought this Pixco branded M42 to E-mount Helicoid adapter. It's adjustable from 27 to 59 mm.

Contrary to what it says in the ad it allows infinity focus with all my M42 lenses

Also I have not observed any vignetting on Full Frame (A7Rii) using a 50 and a 200 mm lens. More testing to follow but so far it seems an excellent adaptor with better performance than advertised.
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