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Macro Adapter and Summicron 90mm?


karl101

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Karl, I don't see why not. Of course the engraved settings would not be visible. On the 90mm Macro lens you have two sets of focusing and aperture setting markings, but you should be able to work with it. I have not tried it though.

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Karl, don't worry, you are not the first person to think of this:)

(I have the Macro Elmar 90 and attachment).

I think that the first problem is that the Summicron is designed with a minimum focus distance of one metre whereas the Elmar goes down to 770mm. The adapter works over the range 500mm to 760mm. The focus cam profile for the rangefinder is going to be all wrong and the framing won't work either. You can fit other M lenses into the adapter and they must be focsable at some point, you just won't be able to tell where that is and estimating won't work when you have no tolerances DoF.

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Geoff is correct. The Macro Adapter works only with the 90 Macro. He mentioned the optical reasons for this; there's also a physical reason:

 

The 90/4 Macro is collapsible. In normal use, the rear of the lens tube bayonets into the focusing mount.

 

To use the macro adapter, you mount the adapter to the body, then collapse the lens and bayonet the rear of the focusing tube into the macro adapter.

 

Since the 90/2 isn't collapsible and doesn't have a tube designed to fit the macro adapter, there's no way to get it to fit.

 

 

Some earlier 90/2's and 2.8's had removable heads. There were adapters made to mount those lens heads to the Visoflex, but none of them will work with the Macro Adapter.

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95% true Howard;)

Unlike with the BOOWU-M and the collapsible Summicron 50, the collapsible tube of the Macro Elmar 90 M does not have its own (smaller) bayonet. The tube does not collapse rearward past the normal bayonet flange. Indeed, if it did you could not safely collapse it when fitted to M8/9 camera or macro adapter. It is important to note that this problem exists with older collapsible lenses.

The rear bayonet flange of the adapter fits the body and the front of the adapter duplicates the camera body bayonet recess. The adapter front bayonet has a roller (like the body has) to engage the focus cam and a precise extension to the rear to then engage the normal roller in the body.

 

The Macro Elmar 90 M only focuses correctly when it is extended, on or off the macro adapter (although it will work collapsed on a VISOFLEX if you want to experiment).

That is attaching it via the bayonet, not removing the head which DOES NOT come off :eek:

 

When you fit the Macro Elmar 90 M, it must be fitted upside down (and it has a second focus scale from .5m to .76m that you need).

Other M lenses fitted will engage (upside-down too) and the rangefinder will operate. Sadly for the OP it will just not focus (or frame) correctly.

 

ps yes I tried it for you;)

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Geoff--

Thanks for the correction. I only saw the lens once, when it first came out; I remembered having to invert it and thought that was a neat idea. Obviously, I blew it on the lens tube bayonet. I see what you say, looking at the Leica images of it. :o

 

But tell me this: In another thread, someone said he dumped his 90 Macro because the lens tube didn't lock in place, but could easily be bumped out of position. Someone else responded that the lens locked into its focusing mount just like a number of Leica lens hoods, by twisting. That's the bayonet mechanism I thought I was describing. :confused:

 

 

Karl--

No one can predict specific delivery dates for Leica products, not even Leica.

 

My recommendation: Check with other dealers to see if you can find it. If you can't, choose a dealer you like and put it on order.

 

It may be 8 months or a year or 6 weeks, depending on whether the dealer already has it on order and where your name comes in the list. Annoying, certainly, but it's the way Leica works, and always has been.

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The goggles of the Macro Adapter change the geometry of the rangefinder. The Macro 90 lens has two focusing cams (or at least two different surfaces machined onto one cam) - one on the top and one of the bottom.

 

By mounting the lens (as required) upside down on the adapter, the "bottom" cam becomes the "top" cam, and engages the rangefinder, driving the RF's new geometry to work at close distances.

 

Since no other 90mm M lenses have the dual cam (surface)s, none of them except the Macro can be used with the adapter (except perhaps trial-and-error focusing, while chimping between exposures).

 

It is similar to the Dual range Summicron 50mm, except that the Summicron had an extended focusing range built-in (enabled by mounting goggles, with a stepped cam that accounted for the changed RF geometry) - rather than a separate extension tube and having unmounted and flipped.

 

As mentioned, the collapsing barrel has nothing to do with focus capbilities - it is simply to allow the lens to store more compactly when not in use, no different in purpose than other collapsible Leica 50s and 90s.

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Howard when the forward section is extended you rotate it until you get the aperture reference point where it will be top centre after you twist the assembly to lock.

Unlocking only requires a small rotation in the opposite direction. Yes you could unlock it by accident if you held the forward section wrongly. There is not an external latch to disengage, if that makes it clearer.

Simply works like the extendable hoods...pull twist...untwist... push.

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To answer your question - the Macro adapter and the 90 work very well together. It is a carefully engineered system, and it functions nicely.

 

But I couldn't figure out how best to use it. It really isn't for handholding (too close, too much shake), so its tripod oriented. And it works if you have no other solutions available. In the end, an SLR solution seemed like a better answer.

 

So - well engineered, functions well, but make sure you have a need for it.

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My recommendation: Check with other dealers to see if you can find it. If you can't, choose a dealer you like and put it on order.

 

It may be 8 months or a year or 6 weeks, depending on whether the dealer already has it on order and where your name comes in the list. Annoying, certainly, but it's the way Leica works, and always has been.

 

15 days ago, a dealer in my town had one on his shelf... lens only (new, boxed), no the macro adapter... don't know if is still there.

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You meant to say that the Macro Elmar 90 and its macro adapter work well together.

:)

 

To answer your question - the Macro adapter and the 90 work very well together. It is a carefully engineered system, and it functions nicely.

 

But I couldn't figure out how best to use it. It really isn't for handholding (too close, too much shake), so its tripod oriented. And it works if you have no other solutions available. In the end, an SLR solution seemed like a better answer.

 

So - well engineered, functions well, but make sure you have a need for it.

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It's correct that the Macro Adapter will only work with the 90mm Elmar - as Andy says, it's mounted upside down to present an alternative profile focussing cam to the camera and distance scale to the user. Try to do the same with the Summicron and something will get bent or scratched.

 

It's an expensive macro solution and only goes down to 3:1 (or should that be 1:3?) - in other words, the image projected onto the sensor is 1/3 life size where a true macro solution should go down to 1:1. For me, it's an engineering curiosity, but for the price, you can buy a Nikon D700, their fab 60mm f2.8 true macro lens AND a ring flash to light your way. I have it (and seem to remember the macro adapter has a different "lens" code to the lens itself) but rarely use it.

 

I think it's a product which exists because when asked "Why?", the answer was "Because we can!".

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There is an outer cam (on the chromed bayonet flange) and a long inner cam with unique shape. A notched surface with slope in two directions. That unique shape is why no other lens can focus correectly. Some will actually fit, others will physically not. Either way it is academic.

 

The macro adapter does have a different code than the lens. As far as I can detect it only affects EXIF not any correction, which would be logical for a short tele macro that is very well corrected and designed for close range performance any way.

 

The Macro adapter does several things.

It mounts magnifiers for the rangefinder and viewfinder.

It is a spacer (extension tube).

It transmits the roller position rearward the precise amount needed.

It rotates the engagement point 180 degrees (which engages the opposite reverse angled end of the (V shaped) cam. That reverse angled area only covers the range from .5m to .76m. It is not a mirrored clone of the normal surface.

 

So it is ingenious, complex to design and machine precisely and expensive. It has a limited functional range too. It is capable of superb results within that limited range however.

 

It is true that a dedicated system with a dSLR can provide more versatility for less money.

That is really beside the point though. You might level that argument against M cameras for many functions. The OP was really interested in discussing what was possible with his M equpment. Fair enough in this Forum :)

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Hi Karl and all of you,

Here is a picture taken with my M8+macroadapter+ 90mm macro

It is a beautiful set enough for me to make the macro and not bulky like the bellows :D

 

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

 

Regards

Henry

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...and the complete set that I use for macro photography with the M8 and M9

 

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

 

Henry

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