Author Topic: April 2021  (Read 25423 times)

ianwatson

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Re: April 2021
« Reply #135 on: April 14, 2021, 22:01:10 »
Great portrait, Ian.

Thank you, John.

John Geerts

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Re: April 2021
« Reply #136 on: April 15, 2021, 06:01:10 »
First leafs

D800E  105/1.4

Fons Baerken

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Re: April 2021
« Reply #137 on: April 15, 2021, 07:57:46 »
First leafs

D800E  105/1.4

Very nice, chestnut leaves, John!

Akira

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Re: April 2021
« Reply #138 on: April 15, 2021, 08:49:26 »
First leafs

D800E  105/1.4

Very delicate rendition.
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira

Akira

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Re: April 2021
« Reply #139 on: April 15, 2021, 08:50:07 »
Morning clouds.
"The eye is blind if the mind is absent." - Confucius

"Limitation is inspiration." - Akira

Fons Baerken

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Re: April 2021
« Reply #140 on: April 15, 2021, 10:07:44 »
April 15

Chestnut - Aesculus hippocastanum

Df - 400mm f/5.6

Birna Rørslett

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Re: April 2021
« Reply #141 on: April 15, 2021, 10:15:47 »
"Daffodil with radar eyes" -- free modification of the song title by TD from 1996, if memory serves.

Putting the Rodenstock TV-Heligon 50mm f/0.75 on my NEX-5N Monochrome made such a bright view that even the shortest shutter speed could not prevent massive overexposure. And this under hazy early morning light :(

John Geerts

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Re: April 2021
« Reply #142 on: April 15, 2021, 12:17:44 »
Thanks Fons and Akira.

aerobat

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Re: April 2021
« Reply #143 on: April 15, 2021, 18:51:49 »
Rusty... X100V - F5.6; 1/60s; ISO160
Daniel Diggelmann

John Geerts

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Re: April 2021
« Reply #144 on: April 16, 2021, 07:09:58 »
Still very cold, occasional snow/hail/rain

The Central Station Square

Z6  58/1.4G

Birna Rørslett

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Re: April 2021
« Reply #145 on: April 16, 2021, 07:13:32 »
My 40cm Novoflex 'Fernobjektiv' set up and ready to be deployed .... I could never get anything remotely stable using the Pistol Grip section, so set the system up using alternate parts I already had at my disposal. The PN-11 extension ring at the end of the PB-4 bellows gives a better near limit and one avoids extending the bellows device to its full extent. As the front head of the Novoflex ends in 48mm threads, it was a breeze to incorporate a Baader U filter at its rear end, and link together the lens and the required F mount for the bellows unit. The CPU at the very end allows full EXIF data to be recorded. Admittedly a little bit of extravagance but we deserve pandering to ourselves in these bleak times.



In field tests, the 40cm lens head compared favourably in terms of required exposure to the UV-Nikkor. For sharpness the UV-Nikkor wins hands down, which is no big surprise. However the UV-Nikkor despite its manifold attractions is no 400mm ...

Bent Hjarbo

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Re: April 2021
« Reply #146 on: April 16, 2021, 09:23:55 »
Impressive setup.
I see the snow has vanished, look as you have nice weather.

Kim Pilegaard

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Re: April 2021
« Reply #147 on: April 16, 2021, 10:04:34 »
Interesting setup!

Could you specify the exact Baader U ring you used?
Kim

Birna Rørslett

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Re: April 2021
« Reply #148 on: April 16, 2021, 10:12:18 »
Interesting setup!

Could you specify the exact Baader U ring you used?

The Novoflex head has 48mm threads - very unusual for standard photographic purposes, but normal in astro etc. The Baader U itself sits into a small cell comprised of a Nikon K2 to give rear F bayonet for the PB-4, and a holding ring which simply is 48 to 52 step ring.  A K-4 is used as an extra spacer.

It's easy to put other 48mm sized filters in lieu of the Baader U for IR or other specialised applications. Or other filter sizes if a different filter cell is devised.

Fons Baerken

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Re: April 2021
« Reply #149 on: April 16, 2021, 10:45:29 »
April 16

blush roses

D3s, 24mm f/1.4