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Archive 2007 · AF Confirm Nikon EOS Adapter?

BobbyP
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p.1 #1 · AF Confirm Nikon EOS Adapter?

In the past, I have purchased several AF confirm Nikon EOS adapters from happypagehk on ebay and they have all worked really well. But now, when I need another two, happypagehk does is not offering any for sale.

Can anyone recommend another source for these adapters? I see a number of vendors from Shanghai on ebay, but I am not familiar with the quality of their adapters.

Jul 24, 2007 at 04:01 AM

Kuan
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p.1 #2 · AF Confirm Nikon EOS Adapter?

Try Haodascreens.com. Its in the US. I have a contax->eos adapter and it works great.

Jul 24, 2007 at 04:54 AM

jay tieger
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p.1 #3 · AF Confirm Nikon EOS Adapter?

I'm in the same boat...so I ordered one from this seller whose previous buyers gave +++ feedback...fingers crossed...

http://cm.ebay.com/cm/ck/1065-29392-2357-0?uid=17166442&site=0&ver=EOIBSA080805&lk=URL&Item=170131987504

Jul 24, 2007 at 01:05 PM

jay tieger
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p.1 #4 · AF Confirm Nikon EOS Adapter?

...and it's haodascreen.com no s at the end.

Jul 24, 2007 at 01:10 PM

BobbyP
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p.1 #5 · AF Confirm Nikon EOS Adapter?

Jay,

Thanks for the heads up on the haoda url. I looked at the listing on ebay, and could not understand what the seller meant by 'We do have special version for EOS 1D MARK series and film cameras which needs 1USD PLUS.'

If you would, let me know how your adapter works out.

Thanks.

Jul 24, 2007 at 01:23 PM

jay tieger
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p.1 #6 · AF Confirm Nikon EOS Adapter?

BobbyP wrote:
Jay,

Thanks for the heads up on the haoda url. I looked at the listing on ebay, and could not understand what the seller meant by 'We do have special version for EOS 1D MARK series and film cameras which needs 1USD PLUS.'

If you would, let me know how your adapter works out.

Thanks.

If you look closely at the various fleabay listings of adapters you'll see a few like the haodascreen for $50-75 or so...I tried the $35 version, being cheap...

BTW...my 85,200 and 300 are spot on for focusing to the LED...but my 135 lenses - I had 2 and 2 different versions- and both were consistently in focus at the point when the LED went OUT as I focused from the LED "on" towards INFINITY...did you notice any front focusing issues...?

Jul 24, 2007 at 01:57 PM

BobbyP
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p.1 #7 · AF Confirm Nikon EOS Adapter?

Jay,

I have the happypagehk adapters on my 25 and 35 Zeiss ZF lenses, and the AF confirm works exactly as it should, for both close focus, mid-field and infinity. My 135 and 200 are both Canon, so I don't have any experience using AF adapters on long lenses. I will be purchasing the 85 and 100 ZF lenses and am interested in the AF adapters for those lenses.

I sent an email to happypagehk asking if he will be selling more adapters, but I have not received a reply. The one reservation I have about the cheap adapters is that I am concerned about the machining and whether or not the flange thickness is the same all the way around the adapter. I checked for focus from corner to corner with the ones I have and they are OK, but I have seen reports where users measured their flange thickness with a micrometer and found measurable differences from one side to another. I wish that suppliers in the US with better quality adapters would offer them with AF.

Jul 24, 2007 at 02:49 PM

mikeengles
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p.1 #8 · AF Confirm Nikon EOS Adapter?

Hello

The problem is I think that the Nikon bayonet is connected to the
Canon part by 4 screws. This can cause a slight bulging in between the screws. I have just bought an adaptor from Lilybox which is of a much better quality, that uses 6 screws. This has a black finish.

http://cgi.ebay.co.uk/AF-Confirm-H-Quality-Adapter-Nikon-Lens-EOS-5D-1D_W0QQitemZ250146958888QQihZ015QQcategoryZ48556QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
I cannot measure the flatness, as the flange is recessed, but my lenses now focus at infinity on the scale rather than before.

Mike Engles

Jul 25, 2007 at 05:59 PM

jay tieger
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p.1 #9 · AF Confirm Nikon EOS Adapter?

I do worry about the quality control issues but for $35 I'm willing to take a shot.

Jul 25, 2007 at 09:13 PM

zhangp
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p.1 #10 · AF Confirm Nikon EOS Adapter?

Talking about "willing to take a shot", I just bought one here for $11.50

sure, not AF confirmed

Jul 25, 2007 at 09:39 PM

BobbyP
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p.1 #11 · AF Confirm Nikon EOS Adapter?

Mike,

I emailed lily-box about his adapter, asking him what it was made of. He replied that he did not know, just that it was an 'alloy'. Can you tell if your adapter is made of aluminum, or it is plated bronze or what?

Jul 26, 2007 at 03:58 PM

mikeengles
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p.1 #12 · AF Confirm Nikon EOS Adapter?

Hello

It is in two parts. The Nikon is aluminium, with six screws, but there is no sense of bulging between screws as I get with other 4 screw adaptors. The Canon is I think machined in aluminium and has a black metal finish. The combination seems to be thinner than my other Nikon adaptors, so that my 24 2.8 actually focusses at infinity at the infinity mark, rather than the 2m mark. The release mechanism also differs from the other adaptors and has a hidden release tab. There is no stop screw like the other adaptors, so it does turn a little too far when releasing from the camera, but once you know it is not a problem. I don't really trust the AF on these especially with wide angles, so I use a split image screen on a 5D.

A German seller on Ebay also has what looks like one of these adaptors for sale.
http://cgi.ebay.co.uk/Adapter-Nikon-lenses-to-Canon-EOS-body_W0QQitemZ330149912142QQihZ014QQcategoryZ17693QQcmdZViewItem

Mike Engles

Jul 27, 2007 at 12:11 AM

BobbyP
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p.1 #13 · AF Confirm Nikon EOS Adapter?

Mike,

Now that I look closely at my happypagehk adapters, I see that they are the 4-screw model, and there is bulging between the screws. Despite this, my 25 and 35 focus correctly. I think the 'bulge' is compressed when the adapter is fitted to the lens. Crappy construction. I can see why happypagehk is having quality control issues.

It is easy to check your AF confirm focus. Just shoot a yardstick at 45 degrees using the AF confirm to focus on a specific line. Examine the shot at 100% in Photoshop. You can easily spot front or rear focus. You can do the same test with your split screen to test it as well.

The German adapter is the same as the Fotodiox pro model, which is half the price of the German model. But neither one has AF confirm.

Jul 27, 2007 at 02:30 AM

jay tieger
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p.1 #14 · AF Confirm Nikon EOS Adapter?

I checked the focus confirmation LED as BobbyP suggested which is why I know that the 135 was off, and by how much, AND discovered how to 'compensate' for its front focusing by being "ON" exactly when the LED goes OFF...tho I'm still weirded out that the 135 alone is "off" I'm glad to have the focus confirmed so I can adapt to the adapter...

Jul 27, 2007 at 02:46 AM

BobbyP
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p.1 #15 · AF Confirm Nikon EOS Adapter?

I've done some more checking on the adapters that I have.

The best fit is the Cameraquest adapter. This is because it has the longest locking pin that goes into the slot at the rear of the Nikon mount, as well as the stiffest spring. The Nikon side of the mount is shiny and appears chrome plated, but it scratches easily with a jeweler's screw driver, so I am not sure of the metal. It has six screws and no bulging. The Canon side is black anodized brass. At $175, it is the most expensive adapter, but has the best fit and finish. Unfortunately, it does not have an AF confirm chip. I emailed the owner at Camerquest and he replied that he will never offer a chipped adapter because a faulty chip could short the camera and that any chip was a patent violation.

The next best fit is the Fotodiox. It looks like the Cameraquest (black on the Canon side), but has a shorter pin and weaker spring on the Nikon side, six screws and no bulging, and is not shiny and scratches easily. The Canon side appears to be black anodized brass. There is some play when the lens is mounted to the camera with this adapter. It costs $90. I emailed them about offering a chipped adapter, but they did not respond.

The happypagehk adapter has quite a bit of movement when mount to the lens, and the lens moves when mounted to the camera with this adapter, This is because it has the shortest pin and weakest spring on the Nikon side. It has only four screws and the flange bulges between the screws. It does have an AF chip that does provide accurate focus confirmation. At this point, I am concerned about the excessive play. I think I will take it to my technician and see if he can substitute a longer pin and stiffer spring.

Jul 27, 2007 at 03:38 AM

mikeengles
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p.1 #16 · AF Confirm Nikon EOS Adapter?

Hello

The Lilybox adaptor is almost identical to the Fotodiox, except that the Lilybox Nikon release lever has a different design is also black, rather than chrome. The locking pin seems longer on the Lilybox but the recess of the Nikon flange also looks very similar.

http://www.fotodiox.com/shop/product_info.php?products_id=3908

This makes this type of adaptor thinner overall than the other generic adaptors on Ebay. The difference in weight is 20 and 30 grams for Lilybox and generic respectively. This might explain why my Nikon 24 and 18mm lenses, have infinity focus exactly at the infinity mark, wheras with the generic adaptors infinity is at the 2m mark!

Now the Cameraquest is even more identical to the Lily box, including the design of the release mechanism. What it does have and the Lilybox does not is a bend in the Canon flange to act as a stop. The Lilybox site shows this feature, but their adaptor does not have it, nor does it have a stop screw like generic adaptors. Correction the kink is there but does not seem as pronounced as the Cameraquest.

http://www.cameraquest.com/frames/4saleReos.htm

Both the cameraquest and the Lilybox have the rear antireflection flange. This flange is also needed to strengthen the adaptor as the metal is thinner than generic adaptors. The Lilybox and Camerquest pins look about the same length.

The Lilybox site has some pretty good pictures
http://cgi.ebay.co.uk/AF-Confirm-H-Quality-Adapter-Nikon-Lens-EOS-5D-1D_W0QQitemZ250146958888QQihZ015QQcategoryZ48556QQtcZphotoQQcmdZViewItem

Mike Engles

Jul 27, 2007 at 10:03 PM

zhangp
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p.1 #17 · AF Confirm Nikon EOS Adapter?

Here is a test shot with Nikkor 55mm/f2.8 Ais Macro lens on my 5D using an adapter cost $11.50

Jul 31, 2007 at 01:58 AM

440roadrunner
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p.1 #18 · AF Confirm Nikon EOS Adapter?

I don't know where I got my Nikon/EOS adapter (eFray) without AF chip, but here's just my opinion.

I have TWO M42/EOS adapters with chips that came from big_is on eFray, as posted by someone earlier. One was sent as a warranty, and both are very troublesome. Sometimes you have to spend 5 minutes wiggling the lens to get the chip to communicate. Sometimes the camera locks, you must pull the battery to reset. Be clear, these are both "factory" adapters, unmodified by me at the time.

(Later, I took one adapter and did this

http://forum.manualfocus.org/viewtopic.php?id=7189

I also recently tore down a "thrift store" Chinon SLR and cut the focus screen to fit my XT. I have high hopes for this, but the exposure must be compensated.

My Nikon/EOS has a chip glued on by me, bought from "EricC" from eFray, works perfect.

I AM having focus problems with my EOS, haven't yet decided if it's the camera, or not.

So far as the 45 degree ruler test, in my opinion, this is inconclusive--because--you don't know for sure "what" or "where" the AF sensor is "seeing" In my opinion, the only sure way is to

Set up a flat target, like a box, on a ruler. Get "AF confirm" in manual focus mode or use a manual lens. Snap some shots, and then, without changing the camera, move the box nearer/further. and note on paper.

Aug 03, 2007 at 10:11 PM

jay tieger
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p.1 #19 · AF Confirm Nikon EOS Adapter?

I got my 2nd adapter, this one from the same "big_is" on fleabay as roadrunner got...it does fit, but it is a bit loose, the hole being a bit large for the Canon locking pin...the release "flap" is also a bit flimsy but it does work once you get the hang of it...
the metering / focus chip does work...

...it does make me consider getting a more expensive adapter, but I wonder just how much "tighter" any other might be...
If anyone has one (with the IC chip) that fits snug-tight I'd like to know...thank you for your reply...

Aug 03, 2007 at 11:07 PM

440roadrunner
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p.1 #20 · AF Confirm Nikon EOS Adapter?

My problem is not loose fit with the two adapters, the problem is that the AF chip(s) from him are very tempermental.

Aug 04, 2007 at 12:43 AM

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