Macro-Lens 82mm > +10 D ?

C

cici

Well-known member
Does anybody know a manufacturer for close-up lenses that are equal or > +10 D ?

The only one I know is (eav-)Fox and I only can see it's filters at eBay .... so I doubt a little about the quality...

I'd need it for almost microscopic views underwater in tropic coral reefs.

Thanks for help!

(sorry, wrong category.... has to move to "hardware" - I can't move it there)
 
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You might look into the achromat that comes with a redrock M2 adapter or any of its competitors like Brevis. I'm not sure what an achromat is compared to a diopter, but it seems to allow you to focus very close.
I think its about $375 but i don't remember.
 
Well - for the underwaterhousing I can't use a 35mm-adapter and for macro it would also be smarter to use a 50-150 USD macroLENS .... A macro-objective can NEVER get even close to +10 D. What I need for the underwaterhousing is just a single lens in front of the camera so it's not that expensive. There are from +1 D up to +200 D (with 200D you have made your camera a microscope!!) but normally, they are for cameras up to 56mm filter diameter and it's harder to find lenses for higher diameters and VERY hard to find such special filters like a +10 or even more (+1 up to +4 is usual for macro...) with 82mm diameter. There are so many manufacturers for filters and lenses, that I really hope to find perhaps with the help of this forum one, that has the solution for powerful macro for our beloved HVX.
 
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Cici, I wasn't suggesting you use a 35mm adapter but rather the achromat that goes on the HVX lens to allow close focusinmg.
On second thought though it would vignette unless you were shooting 4:3.
If you find a +4 or 5 you can always double them up.
Unfortunately diopters that strong often tend to have a lot of distortion at the corners.
 
is this achromat a part between the 35mm-adapter and the camera? That would make sense.... but can 2 of them be bought without buying the adapter and will they really perform like a +10 macrolens? .... With a normal macro-lens there can be troubles with black corners if you don't zoom in 100% . The question is, how those achromats would behave, used as macro-lenses... I found in eBay a lens set of 4 macro-lenses for 82mm, LINK HERE but for 35 USD I doubt that it's so good... and yet in HD .... If it was a well known brand and easy available in Europe, I'd buy it and test it, but I have bought too much cheap optical rubbish before to be willing to try a suspicious brand with no feedback in internet fora. A single macro-lens from raynox costs about 50 USD and they have very powerful lenses (and also a lot of wide-angle lenses), but Raynox has not the 82mm and Sonia from eBay doesn't seem to be high quality even if it's big advantage is, that it's lenses are just 1 part of glass and I don't mind about distortion, so 1 glass is even better for me than a lens group. The Redrock achromates are certainly single lens also, so I'll have a "close-up"-look at that product. Thanks for the idea!
 
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My Redrock is out right now or I would put it on and look at it.
It will prob vignette badly at wideangle but I imagine you would use it at telephoto anyway and then it will cover the whole frame.
How small an object are you focusing on and how far away?

Just thinking about the redrock it would at least focus definately on an area the size of a 35mm still frame around 2 inches away. I don't know what it would like at full telephoto.

I believe it may be +10 already but that's just based on a vague memory of something I read.
The quality would be very good though.
 
Lenilenapi said:
How small an object are you focusing on and how far away?
Click to expand...

Let's say it would be good to be able to see the compound eyes of insects sharp... Objects of a few millimeters for the whole picture.

Example for +10 D is here with the example of a STAMP (look at the one with +12 D):

http://raynox.co.jp/comparison/video/comp_vm3000.htm

I want to film small crustacae and nudibranchs etc. that can barely seen with bare eyes... they are from 2mm to 1cm and should fill up the whole screen as the glasses of the man (in the example pict. with +12 D) of the stamp fill the whole screen....

Or perhaps a little ant that fills the screen all alone...

the obcects will be right 0-4 cm in front of the lens.

Thanks for helping!
 
One of our FX1 users tried out the Cinevate 72mm achromat just bare on the lens. Providing you maintian a distance less than the focal length of the achromat (a few inches), they will work exactly as a macro "filter" on an SLR. I actually tried a few shots with my 8MP digital SLR and the achromat worked very well. I'll have a full test series posted up in a few weeks.
 
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@Steve: thanks for the link - THAT seems really to be what I was looking for, and the price is ok if you can shoot great macro stuff with it without chromatic aberration, dark corners and too hard distortion.

@Lenilenapi: that's perhaps also what you were suggesting me.
 
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