More magnification ....

hi,

im using the Olympus E-M1 with the 60mm Olympus and the Nauticam CMC.

Can i get more magnification with the SMC stacked?

Probably it will focus inside the wet lens itself

I hardly find use for the CMC on the 60 mm.

Just crop...

I hardly find use for the CMC on the 60 mm.

 

Just crop...

realy?

Hairy Shrimp , Clownfish eggs ..... only this as example

Have you looked at the combination of the SMC-1 (81201) and the SMC Multiplier (81211)? They were made to be stacked. This page has some comparison shots with SMC vs +10 and SMC + multiplier vs +10 + +5 stacked. http://www.uwphotographyguide.com/nauticam-SMC-SubSee-Diopters

Bob W

That's an excellent comparison. But is it relevant to an m4/3 system, for which the CMC is recommended? I confess I still haven't quite grasped the difference between the SMC and CMC . . .

Smc is for DSLR with longer working distance. Used with the 60mm may focus inside the lens

That's an excellent comparison. But is it relevant to an m4/3 system, for which the CMC is recommended? I confess I still haven't quite grasped the difference between the SMC and CMC . . .

I use an SMC on a 12-50mm with my Olympus M10. The CMC did not exist yet.

Smc is for DSLR with longer working distance. Used with the 60mm may focus inside the lens

Not sure what a "longer working distance" is quantitatively, but with my 12-50mm (used in the macro 43mm mode, or at 50mm) the SMC is fine.

I do not know if I'd be better off with a CMC than with my SMC, but it is not because the SMC doesn't work. I am curious about the possible advantages of a CMC as to working distance and magnification, of course.

I was referring at the smc+multiplier suggestion which was made previously. The CMC is the best option for the 60mm however there is very little depth of field left to focus at apertures where the lens has still decent performance.

The CMC is around 13.33 diopters I think the smc is equivalent to 11.

With the CMC your working distance is around 2cm which is shorter than a lens you can stack

In general with a lens like the Olympus that focusses at 9 cm in water you want a diopter with focal length shorter than 90mm or to say stronger than 11 as a minimum. The CMC being 13.33 is the strongest single lens on the market right now and I think in terms of magnification with the Olympus 60mm the strongest system on the market as far as i have seen

So I take it I should not think about getting a Multiplier to add on to my SMC?

My examples were for the Olympus 60mm. How much working distance have you got in front of the smc in water?

Not much! Maybe 2-4 cm. More than one. Less than 5.

Ok then you are likely to be maxed out

This is a standard test for the Olympus 60mm macro, manually focused to 1:1 all photos taken by "rocking" the camera to obtain focus.

#1 photo is the setup tapping a bill to a 35mm slide mount and onto a window for back lighting.

#2 is 60mm at 1:1 17.3mm on the long side

#3 is using a SubSea +10 C/U lens. Image approx. 13mm on the long side.

#4 is using a SAGA +15 C/U lens, as you can see at +15 the image is 8mm on the long side I don't know how much more magnification you need.

The Nauticam CMC-1 is by far the best C/U lens for the 60mm macro at apex. 8.65mm on the long side.

Ok then you are likely to be maxed out

I don't doubt what you say, but I wonder how you figure that out? What are the rules of thumb or the calculations? How much working distance would I need to make the Multiplier valuable?

100/minimum distance = diopter power when your total distance is shorter than the wet lens you put on is 100% it won't work if there is a bit of room depends. That's why a short lens like the CMC with high power is better than lenses like the subsee that are very long. The real focal length is on the back of the glass so the longer lens takes just working distance away

Well, thank you for the response, but I do not understand what you are saying in your first sentence. (I've tried putting commas and periods in various places in your response, but nothing I do turns it into meaning for me.) I cannot decipher what units "distance" needs to be in to make your formula helpful; are you using centimeters? The comments about CMC and SubSee are interesting, but since I have an SMC I do not know how to use your information. I have this feeling that if I knew enough to understand your response, I would not have had to ask the question! Thanks anyway.

Centimetres so your 10 diopters has a focal length of 100/10=10cm or 100mm. So if your camera is focussed at infinity your working distance is 10-length of your wet lens in cm

Centimetres so your 10 diopters has a focal length of 100/10=10cm or 100mm. So if your camera is focussed at infinity your working distance is 10-length of your wet lens in cm

I think is around 90mm or 11.1