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Old Mar 26, 2007, 10:49 PM   #21
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LOL! Roy, I was thinking about you when I looked at the second poppy picture and realized that I didn't have much for DOF, but the bug was nicely in focus. I'm actually feeling rather flower-starved, since there's so little in the way of wildflowers out.

I was hoping you would post how you made the reversing ring - thought it was an interesting way to get your feet wet.

Tim - thanks for mentioning the diopers - I have one (think I know where it is) and haven't used it in a while. I'll have to dig it out and give it a try. I don't have a set and I don't know the strength because it had been bought by my father and was in a box that only said "close-up filter." As I recall, it works pretty well with the 50mm lens.
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Old Mar 27, 2007, 4:29 PM   #22
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i've got a set of 3 by hoya #1,2,3, paypal $17 shipped

roy
edit: tim, those are outstanding. what a great piece of glass. i know yours and mine are made by kiron but yours is f2.8 and mine is f2.5 (shows on the f2.4)
my serial is 22404468
what's yours ?

roy
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Old Mar 27, 2007, 4:56 PM   #23
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robar wrote:
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i've got a set of 3 by hoya #1,2,3, paypal $17 shipped
What thread size are they out of curiosity.
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Old Mar 27, 2007, 10:38 PM   #24
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robar wrote:
Quote:
i've got a set of 3 by hoya #1,2,3, paypal $17 shipped

roy
edit: tim, those are outstanding. what a great piece of glass. i know yours and mine are made by kiron but yours is f2.8 and mine is f2.5 (shows on the f2.4)
my serial is 22404468
what's yours ?

roy
Hey Roy,
As I understand it, the actual maximum aperture was identical in the Kiron, Lester A Dine, and Vivitar lenses but Vivitar chose to make a more aggressive claim and called them f2.5. Mine is serial number 18911500. I know you can tell manufacturer on the Vivitars by the first two digits on the serial number but I don't think that is the case with the Dine lens.

Tim
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Old Mar 28, 2007, 8:34 AM   #25
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Hayward wrote:
Quote:
robar wrote:
Quote:
i've got a set of 3 by hoya #1,2,3, paypal $17 shipped
What thread size are they out of curiosity.
the largest i could get at the time. 62mm

the viv on my DS shows up as a 2.4.. go figure

roy
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Old Mar 28, 2007, 8:35 AM   #26
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Hayward wrote:
Quote:
robar wrote:
Quote:
i've got a set of 3 by hoya #1,2,3, paypal $17 shipped
What thread size are they out of curiosity.
the largest i could get at the time. 62mm

tim, the viv on my DS shows up as a f2.4.. go figure

roy
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Old Mar 28, 2007, 9:04 AM   #27
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Here are my best ones as of late, all taken with Pentax SMC-M 50mm f/1.7 (@f/22), 25mm extention tube, (and dust on sensor):

No1.


No2.


No3.


No4.


No5.


No6.


Also have the Sigma 28-80mm f/3.5-5.6 Macro (goes to 1:2) but haven't really gotten any use out of the Macro side of it yet.
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Old Mar 28, 2007, 9:16 AM   #28
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inneyeseakay,

Fabulous and great pict with simple extension tube.
It is a prime example what you can do as a simple DIY (for March Challenge) project.
I know somebody have bought junk (and cheap of course) TC and break the lens and use it as extension tube for macro shot. A lot of these TC are manual one. But who cares ? You do manual with most macro shots anyway.


Daniel, Toronto
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Old Mar 28, 2007, 9:31 AM   #29
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Daniel, Mine was a Tamron 2x Teleconverter, as well, that is before it underwent it's elementectomy ... Didn't even think about entering it into the March DIY Challenge.
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Old Mar 28, 2007, 2:56 PM   #30
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using extention tubes with a 50mm lens you will need about 50mm of tubes to get to a 1:1 ratio macro. i don't use them on a 50 anymore because i have a dedicated macro lens. i do use them on a 200mm. i put 63mm ETs on the 200 and i get little less than a 1:4 ratio and it's good for larger insects, flowers, etc. also, you get a good 30 inches of working space which if you are allergic to stinging insects as i am makes it a lot easier on the nerves.i usually always use flash. here's a couple Dflies as close as i could get using the ETs on a 200mm.





roy
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