Medium format lenses converted on 35mm digitals.
/forum/topic/1132088/6

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contas
Registered: Jul 21, 2010
Total Posts: 1048
Country: Vietnam

Thanks Carstenw and Ahamb for practice judgements.I have the same experiences and this lens: Apo-Makro-Planar smokes all my 35mm lenses in all aspects.



carstenw
Registered: Dec 26, 2005
Total Posts: 16058
Country: Germany

Just one note: I just sold my Contax 645 120/4 Makro-Planar (*sniff*), and had a potential buyer asking how sharp it was. He had a copy which was not sharp on his IQ180 back, whereas his 35, 55, 80, and 140 were. The 210 and 350 were also not sharp.

I don't know if it was just his copy, and in the end, someone else bought it, so I will probably never find out. I expect that the lens is very sharp, even on such a back, but I am not sure.



contas
Registered: Jul 21, 2010
Total Posts: 1048
Country: Vietnam

If Apo-Makro-Planar isn't sharp in my opinion mustbe defected, this is designed for micro-photography, mine and Briantho's are extremly sharp at wide open, we even use it WO for any kind of shooting.Use it on 35mm it corrects some optical peripheral shortages and images are awesome good.
I think it's a must have lens for a Pro or keen user.



carstenw
Registered: Dec 26, 2005
Total Posts: 16058
Country: Germany

The aperture control is a problem for me, with my Nikon. I would have loved to keep this lens, but I don't want to shoot wide open all the time. Anyway, now it is gone.



contas
Registered: Jul 21, 2010
Total Posts: 1048
Country: Vietnam

Apo-Makro-Planar , @4.0 on Sigma SD1 Merrill iso 100 ,1/800s.
Lotus flower.
http://farm9.staticflickr.com/8091/8575506511_acc4730536_h.jpg



contas
Registered: Jul 21, 2010
Total Posts: 1048
Country: Vietnam

The same combo at 1/1250s.
And Lotus seeds.
http://farm9.staticflickr.com/8251/8576600866_8abcf81b3e_o.jpg



jcolwell
Registered: Feb 10, 2005
Total Posts: 21940
Country: Canada

Beautiful.



contas
Registered: Jul 21, 2010
Total Posts: 1048
Country: Vietnam

Thanks Jcolwell, you have "sharp eyes".



JohnJ
Registered: Jul 09, 2005
Total Posts: 2014
Country: Australia

irish-george wrote:
...Not trying to be a kill-joy, just don't get caught up in a mis-informed fad. OTOH, if you really need a real 1/500s flash sync on any camera body, a leaf shutter medium format lens is the way to go.


So how does one do this with a medium format lens such as Pentax, Blad, Mamiya etc (not large format lenses with Copal shutters etc)? Presumably you have some experience using a leaf shutter medium format lens on a DSLR so I'm hoping you could share how to do that. Unfortunately I haven't yet found a practical solution so I'm eager to hear yours.



jcolwell
Registered: Feb 10, 2005
Total Posts: 21940
Country: Canada

irish-george wrote:
MF lenses can be fun to use, good quality, and give you leaf shutter advantages, but not a single one of them, at any price, has the resolution of a high quality 35mm format lens.


This is total bull.



RustyBug
Registered: Feb 02, 2009
Total Posts: 13564
Country: United States

irish-george wrote:
MF lenses can be fun to use, good quality, and give you leaf shutter advantages, but not a single one of them, at any price, has the resolution of a high quality 35mm format lens.



Sweet ... that mythical rationale will help keep the supply up and the prices down.

This was a test shot taken not only with MF glass, but with MF glass on tubes (furthering additional contrast reduction) ... btw, it was NOT even a macro lens, and it was shot on the 5D Classic (ancient in camera years).
Sorry, raw no longer available ... I had to download this from a previous upload.





contas
Registered: Jul 21, 2010
Total Posts: 1048
Country: Vietnam

Tropical jungle.
Mir 26B 45mm, @8.0 on Sigma SD1 Merrill Iso 100 1/200s.AF confirmed chip installed.
http://farm9.staticflickr.com/8107/8588027963_bf86b6309d_h.jpg



carstenw
Registered: Dec 26, 2005
Total Posts: 16058
Country: Germany

Well, since I once criticised the greens in one of your shots, it is only fair if I say that these greens are really nice.



contas
Registered: Jul 21, 2010
Total Posts: 1048
Country: Vietnam

Thanks Carstenw, I think I got your palette.This is the first time I decided to change from O to 10C palette, it may please our look but a little unreal for whom, who lives near the equator.



contas
Registered: Jul 21, 2010
Total Posts: 1048
Country: Vietnam

Mir doesn't let me down once, it beeps at f/8.0, on Sigma SD1 Merrill Iso 100 1/400s.Returned to O palette.
http://farm9.staticflickr.com/8527/8608696632_05370d2284_h.jpg



Alf Beharie
Registered: Apr 18, 2007
Total Posts: 834
Country: United Kingdom

contas wrote:
Tropical jungle.
Mir 26B 45mm, @8.0 on Sigma SD1 Merrill Iso 100 1/200s.AF confirmed chip installed.
http://farm9.staticflickr.com/8107/8588027963_bf86b6309d_h.jpg


Where did you get a SA AF confirmation chip



contas
Registered: Jul 21, 2010
Total Posts: 1048
Country: Vietnam

We do know EF/-s protocols are the same from SA , so I decided to use the AF confirm chip for Canon on my SA mount.Before doing it, I did a large search on the internet , but the result was absolute negative, many guys confirmed that can't do such thing, due to of different mount throat radiuses between the two.
OK, I did it and get it now.Is that easy?.No, it is a big NO here.Before got the last success, I broke 3 chips, used 2 sets of epoxy glue and fortunately didn't get a single electric shortcut, that could kill SD1 Merrill in a fraction of a second.
How do I do it for my Leica Elmarit 135mm , a real solid lens, no room to hide a PCB.
Materials :
1- M42 to SA adaptor, get it on Ebay rather cheap.
2- AF confirm chip for Canon EOS , from Ebay also.
The Leica lens need to remove all fins.
A small cog is created at 4 h, immitated the rear of the SA mount to switch AF.
Measure carefully each camera's pin locations , then mark them on the inner SA mount throat.
Glue the chip accordingly the marks, for stronger, I created the base for the chip.
Wait 2 hours, then soldering a drop of lead on the 2rd chip pin, a little higher the rest 5 chip pins, then file it down to creat the plane as other 5.
Note: never let the 1st left camera pin touch anything, that's is very important like live or die matter .
It depends on the skills, if I don't have those, I do it many times untill get it.








e6filmuser
Registered: Oct 11, 2008
Total Posts: 2426
Country: United Kingdom

Perhaps bending the topic a bit:

It is said that X-Pan lenses are really Medium Format design. Here is what can be done with the 90mm for macro on m4/3:

http://www.photomacrography.net/forum/viewtopic.php?p=86558

Harold



carstenw
Registered: Dec 26, 2005
Total Posts: 16058
Country: Germany

Not very convincing sharpness. Too bad, since I have one of these lenses.



contas
Registered: Jul 21, 2010
Total Posts: 1048
Country: Vietnam

Thanks Harold for the info.Hasselblad was untouchable glory, with space Zeiss SA lenses
( C,CF,CFE), They provide the ultimate look into matter's wave lengths.
But X-pan is another period, it still bears that name and price tag but the whole products is Fujifilm made.



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