On Wed, Jul 18, 2012 at 10:23 AM, AlunFoto - Jostein Øksne
<[email protected]> wrote:
> Mark's macro work has been and is good inspiration.
> But you make it sound as if I bought equipment for the sake of besting him... 
> :-)

I don't see anything wrong with a good competition between two friends
that is done in spirit of mutual improvement.

> I think it was around 2006 I started to play with the 645 optics for macro. 
> IIRC, Mike Wilson has a picture of me applying gaffertape to couple two 
> lenses together... But the 645 lenses were otherwise just collecting dust at 
> the time. Actually, the only person to have run film through my 645n in ten 
> years is some guy from Israel, also in 2006. :-)

I think it was 2004 that I was shooting with your 645N. In 2006 we
were all digital already. I do remember that tape that held the two
lenses together, though :-).

> But I digress... My point is that experiments are required to find optics 
> that fit well together for stacking. One can be very positively surprised 
> with results from what one already has lying around!

Indeed.

>
> Boris Liberman <[email protected]> wrote:
>
>>Technique aside, this is marvelous photograph, Jostein. Although you
>>seem to have affinity to (for?) this kind of macro photography at least
>>
>>since 2006 when as I remember you were gearing up towards competing ;-)
>>
>>with Mark Cassino on his snowflake photography.
>>
>>On 7/15/2012 7:03 PM, Jostein Øksne wrote:
>>> There was some exchange on the list about macro photography and
>>> extension a few days ago. Personally I prefer to use stacked lenses
>>for
>>> magnification beyond 1X. Here's one I took today, using the 645D, and
>>a
>>> 150mm lens stacked with a reversed 75mm. The magnification of this
>>combo
>>> is 2X. That's about as much as I can cope with when working handheld.
>>>
>>> The image is severely cropped, but the motif gives you an idea of the
>>> possibilities in the field with this kind of setup.
>>>
>>> Image only: http://turl.no/kz3
>>> In blog: http://alunfoto.blogspot.no/2012/07/feeding-kiss.html
>>>
>>> One reason why I prefer stacking over other solutions is that
>>exposure
>>> automation keeps working. So you don't have to stop down the lens
>>manually.
>>>
>>> Another reason is that P-TTL keeps working. Well, sort of; you have
>>to
>>> diffuse the flash to avoid overexposure because of the short working
>>> distance, but that's okay because you really don't want specular
>>> highlights and sharp shadows anyway.
>>>
>>> And if you're patient, you might actually make AF working. But you
>>have
>>> to keep the camera very steady. :-)
>>>
>>> The knack is to find to lenses that go well together. According to
>>John
>>> Shaw (Book; "closeups in nature"), lenses in the normal range are
>>best
>>> for reversing, and moderate tele lenses best for attaching to the
>>camera.
>>>
>>> Personally I recommend using a tele lens with IF because it makes
>>> working distance more predictable.
>>>
>>> Jostein
>>>
>>
>>
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-- 
Boris

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