Unremarkable picture of a Periwinkle, perhaps . .
Mar 22, 2013 05:37:01 #
Nothing special, except the picture was taken through this 1900 Ross lens
mounted on this rig:
So, dig out Grandpappy's lenses and give 'em a go.
The bellows may involve some sort of lash up, but if the lens axis is at rt. angles to the sensor, and centered, all will be well.
mounted on this rig:
So, dig out Grandpappy's lenses and give 'em a go.
The bellows may involve some sort of lash up, but if the lens axis is at rt. angles to the sensor, and centered, all will be well.
Mar 22, 2013 05:45:04 #
And on a Benbo, kudos bro', Ross lens and a Benbo, sweet.
Mar 22, 2013 06:01:51 #
Kinopless wrote:
And on a Benbo, kudos bro', Ross lens and a Benbo, sweet.
Thanks,Kinopless.
By the way, I'm sorry to mention this, but ought you not to see a Dentist?
Mar 22, 2013 06:23:49 #
But what a brilliant photo of a periwinkle. I suspect we could do it with other lenses. The trick is finding the right periwinkle
Mar 23, 2013 08:12:56 #
Mar 23, 2013 08:18:21 #
I know what anastigmat means, but how you double it is a mystery!
You have done a splendid job! I know that a modern closeup/macro is more practical, but that looks so much more fun! My wife thinks I am nuts, but you are a true enthusiast!
You have done a splendid job! I know that a modern closeup/macro is more practical, but that looks so much more fun! My wife thinks I am nuts, but you are a true enthusiast!
Mar 23, 2013 12:03:54 #
Mar 23, 2013 12:09:00 #
jeep_daddy wrote:
Does periwinkle need full shade to grow?
They grow like weeds here in Portland-- but we do live in "full shade"
;-)
Mar 23, 2013 12:47:45 #
Mar 23, 2013 15:12:46 #
Mousie M wrote:
I know what anastigmat means, but how you double it is a mystery!
You have done a splendid job! I know that a modern closeup/macro is more practical, but that looks so much more fun! My wife thinks I am nuts, but you are a true enthusiast!
You have done a splendid job! I know that a modern closeup/macro is more practical, but that looks so much more fun! My wife thinks I am nuts, but you are a true enthusiast!
The lens probably has 2 groups each being a 3 element group cemented together, each group is a anastigmat, the lens should be symmetrical meaning the front & back groups are identical but pointed in opposite directions. It should be good for a closeup lens.
dsturgis
Mar 23, 2013 16:24:58 #
Interesting, and back then they had to do all the design maths with diagrams and long calculations by hand with log tables. That alone has got to be worthy of recognition!
Mar 23, 2013 20:03:31 #
Griff wrote:
Nothing special, except the picture was taken through this 1900 Ross lens
mounted on this rig:
So, dig out Grandpappy's lenses and give 'em a go.
The bellows may involve some sort of lash up, but if the lens axis is at rt. angles to the sensor, and centered, all will be well.
mounted on this rig:
So, dig out Grandpappy's lenses and give 'em a go.
The bellows may involve some sort of lash up, but if the lens axis is at rt. angles to the sensor, and centered, all will be well.
... and the lens itself is also beautiful! What an enjoyable "kick" it is to try something just to see how well it works. Great post - thanks!
Mar 23, 2013 20:17:29 #
Dar clicks:
Many thanks.
Two minds but with a single thought!
Lenses are just magic, aren't they?
Regards,
G.
Many thanks.
Two minds but with a single thought!
Lenses are just magic, aren't they?
Regards,
G.
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