Since I'm starting into macro photography and I already own a Schneider Componon 28mm f4
Is it worth to buy (cheap) an Aus Jena Planachromat 6,3 ?
Is this color corrected or for the low magnification it does not matter?
Thank you in advance.
Is worth Aus Jena Planachromat 6,3
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rjlittlefield
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Responding to your PM...
I do not have personal experience with either lens. In general, the Componon series has a good reputation for both resolution and color correction. At f/4, the 28 mm Componon should have about the same resolution as a microscope objective with NA 0.1 . Based on other comparisons between enlarging lenses and microscope objectives, I would expect the objective to be sharper at the center of the image, but not as sharp at the edges.
With both lenses, you will need bellows and some adapter to mount the lens. To get best performance, the Componon will need to be "reversed" with its normal mounting threads toward the subject.
Because you are just starting into macro photography and you already own the Componon, I recommend to focus your efforts on learning technique with the Componon. If the time comes when you want to get better glass, then you will know better what you care about. There are a lot of aspects to consider, for example as discussed at Lenses for use at 4-5X on an APS-sized sensor.
--Rik
I do not have personal experience with either lens. In general, the Componon series has a good reputation for both resolution and color correction. At f/4, the 28 mm Componon should have about the same resolution as a microscope objective with NA 0.1 . Based on other comparisons between enlarging lenses and microscope objectives, I would expect the objective to be sharper at the center of the image, but not as sharp at the edges.
With both lenses, you will need bellows and some adapter to mount the lens. To get best performance, the Componon will need to be "reversed" with its normal mounting threads toward the subject.
Because you are just starting into macro photography and you already own the Componon, I recommend to focus your efforts on learning technique with the Componon. If the time comes when you want to get better glass, then you will know better what you care about. There are a lot of aspects to consider, for example as discussed at Lenses for use at 4-5X on an APS-sized sensor.
--Rik
Re: Is worth Aus Jena Planachromat 6,3
Althought i don't own the jena lens i know that this is a 19mm objective. So you have to consider mount it on a rms thread.tmihai wrote:Since I'm starting into macro photography and I already own a Schneider Componon 28mm f4
Is it worth to buy (cheap) an Aus Jena Planachromat 6,3 ?
Is this color corrected or for the low magnification it does not matter?
Thank you in advance.
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Craig Gerard
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- Joined: Sat May 01, 2010 1:51 am
- Location: Australia
It is difficult to say if the Aus Jena Planachromat will work for you as you hope.
I can share my experience with a 2.5X Aus Jena Planachromat objective and can confirm it definitely requires correction beyond the objective. I found it unsuitable to use for macro.
The Schneider Componon 28mm f4 is a very good lens for macro when reverse mounted as Rik suggested.
Craig
I can share my experience with a 2.5X Aus Jena Planachromat objective and can confirm it definitely requires correction beyond the objective. I found it unsuitable to use for macro.
The Schneider Componon 28mm f4 is a very good lens for macro when reverse mounted as Rik suggested.
Craig
To use a classic quote from 'Antz' - "I almost know exactly what I'm doing!"