Brevis or M2: I can't decide on what 35mm adapter to get for my HVX200E at DVinfo.net

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Old September 26th, 2006, 01:20 PM   #1
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Brevis or M2: I can't decide on what 35mm adapter to get for my HVX200E

I'm just going to get a 35mm adapter for my HVX200E.

I have now narrowed down the list of units to choose among to the Brevis and the M2, but now I just can't decide which of the two to get.

The M2 seems to have a more substantial track record, while the Brevis seems sleeker and more up to date.

Any thoughts from owners of the 35mm adapters in question?
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Old September 26th, 2006, 01:40 PM   #2
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Im in the same boat my man!
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Old September 26th, 2006, 01:45 PM   #3
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For what it's worth. I just ordered a Brevis (haven't recieved it yet though) and here are a couple of the main reasons why I chose it over the M2.

- Battery life is 20 hours on a 1.5hr charge.
- It screws onto the front of the camera which has multiple benefits.
- Less light loss than the M2.

I'll let you know how she handles once I recieve it.
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Old September 26th, 2006, 05:10 PM   #4
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Is vibration annoying with the Brevis?

I've heard that the Brevis vibrates quite a lot. Is this more so than with the M2, and is it a problem?
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Old September 27th, 2006, 05:17 AM   #5
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Over on dvxuser they wanted to make an adapter shootout for better comparison, but I donīt know if they have already done it...
The M2s advantage for my is the complete unit with FF and rods, even if it is possible, I donīt want to mount an adapter and a lens on front of my HVX without any support.
And pulling focus without a FF is to unreliable for my needs.
But the Brevis has put out some great images lately and I think its look is more to my taste...
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Old September 27th, 2006, 07:09 AM   #6
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The brevis can be a complete package with rods and support ordered straight off the cinvate site.

I customized my package with the brevis and lens support but the RR rods. It ended up costing a little more than the M2 though which was one minor downside. Not too much though.
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Old September 28th, 2006, 01:55 AM   #7
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What makes you so sure the Brevis loses less light.
The quoted lightloss figures from both adapters seem very hard to apply to the real world to me.
Until someone here posts a direct comparison I wouldn't be sure about anything.
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Old October 1st, 2006, 12:05 AM   #8
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Quote:
Originally Posted by Leonard Levy
What makes you so sure the Brevis loses less light.
The quoted lightloss figures from both adapters seem very hard to apply to the real world to me.
Until someone here posts a direct comparison I wouldn't be sure about anything.
I can tell you this as a Brevis owner...you lose no light.
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Old October 1st, 2006, 02:01 AM   #9
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Dennis says there's a .5 stop light gain!! And I hear that brevis is a lot less complicated to calibrate and setup.
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Old October 1st, 2006, 02:24 AM   #10
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Greg ,
Have you compared it to the redrock for sharpness and eveness across the field?
Really no light loss!!!!
How does it do that?
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Old October 2nd, 2006, 01:29 PM   #11
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Quote:
Originally Posted by Leonard Levy
Greg ,
Have you compared it to the redrock for sharpness and eveness across the field?
Really no light loss!!!!
How does it do that?
Its a trade off Leonard as the diffusion is character and bokeh is cleaner IMHO. Dennis has recently developed a swappalble system of diffusers allowing you to pick just how much diffusion you want to introduce to your picture. I have not compared it to the M2...I don't know anyone who owns an M2 near me so I can't say how they compare, and I can't judge from web footage, but I have always been a fan of the M2. I love my Brevis and the support Dennis provides and the picture is sharp and clean.
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Old October 3rd, 2006, 12:52 AM   #12
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Greg,
I must admit you are tempting me. The web shots look great.

How sharp are the corners vs. the center?
What lenses are you using with it.

No light loss? How is that possible?
I wonder if it has something to do with the size of the image.

Out of curiosity what Zoom & focus #'s on the HVX do you end up working at?

Does this use a vibrating screen rather than a rotating one?
Any noise?
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Old October 3rd, 2006, 01:06 AM   #13
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I have used them both... hard to go wrong with either but the M2 is harder to set up and calibrate but it is a more solid build. The Brevis is a nice unit but it absolutely loses light, there is some convoluted math floating around that says it gains light but that is just plain WRONG. The light loss is among the best of all the lower cost units though.



ash =o)
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Old October 3rd, 2006, 10:16 AM   #14
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If you attach the Brevis to your camera, with the standard diffuser in place, you should be seeing .5 to .7 stops loss with a 50mm f1.4 lens attached. This is assuming the same framing/distance/lighting with and without the adapter. In other words, if your cam was at f2.0 without the adapter, it will be at f1.5 to f1.7 with the adapter and 50mm f1.4 lens attached. If you ignore the fact that the diffuser is a break in the convential optical physics chain, you would calculate that the diffuser itself gains .5 stops to make this possible.

This is contrary to logic in that the lens itself should be losing 1 full stop all by itself at f1.4 and a guaranteed invitation to controversy :-) However, the most relevant measure of light loss to shooters is, IMHO, how their camera's exposure will compensate for the adapter. Obviously if you are using an f2.8 28mm you will see a few more stops, because the 35 lens itself is losing 2.8 all by itself. I use the 50mm f1.4 as my standard as it is likely the most common lense being used by adapter users.

So Greg's comment is not atypical...I've had zero complaints regarding light loss with the adapter. With a fast lens, in decent conditions, it may "appear" that the adapter is losing very little/no light. In fact, with a rather lossy cam myself, minimal light loss was one of my primary consideration in building the adapter.
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Old October 3rd, 2006, 07:10 PM   #15
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Dennis could you answer the other question re: #'s for Zoom and focus on an HVX?
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