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08/24/2008 11:26:46 AM · #26 |
Originally posted by levyj413:
Originally posted by Shutter-For-Hire:
... the lens is FIXED at it's widest aperture. |
Unless you buy extension tubes with electrical contacts, like the Kenko tubes I have. I don't have to set the aperture on the lens; I do it through the camera, just like for a normal shot. |
I have those, too, and they work great with all my lenses. I wanted to be able to fill the frame with my closeup shots, though I have to admit it took me awhile to get used to the close focussing distance. First time I tried stacking several of the tubes on my 50mm I thought, dang, NOTHING's in focus! Then I literally touched the subject with the lens. Oh ... I found the focal distance ;-) |
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08/24/2008 12:29:13 PM · #27 |
Re the dust problem with the bellows. I had not thought about that. I have 2 bellows set ups, one Vivitar, the other Nikon, but have never needed them yet. I like the older manual focus prime Nikkors, so I change lenses like eating popcorn and the sensors stay dusty all the time anyway.
On the "G" Nikkor and aperture control with manual ext tubes thing; The "G" lenses that I have, 18-70 and 70-300, both go to the smallest aperture when removed from the camera. For that reason, I never thought about trying them with an ext ring. I will check it out and see if the older ext rings cause them to go to open aperture when mounted on the camera.
I wanted to use an older 2X teleconverter with a 70-300 "G" so I put a little piece of a rubber "O" ring in the T.C. to prop the aperture lever in the open aperture position in order to shoot with open aperture. I put it on the lens side of the T.C. so that if the little piece of rubber came out, it would not go into the camera body.
I also use a Vivitar "Macro focusing 2X teleconverter" , an odd item that I found on eBay for about $40. With a fish eye on it, I can get right inside a flower and get unusual wide angle shots. It works pretty good with most of the manual lenses that I have tried it with.
Here's a sample shot, inside a compound flower, hand held, with that set up;
The ant is about 1/8 of an inch long.
eta; To see what the converter looks like, search eBay for vivitar converter, there are about 4 or 5 there now for different brands. It would take an FD adapter to use them on the newer Canons.
Message edited by author 2008-08-24 12:46:32.
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08/24/2008 12:58:05 PM · #28 |
Hi again... about the dust form bellowes... Mine are in MINT shape, the previous owner bought them, and never used them... so there is pretty much no dust in them... yes yes yes,,, i know there is dust everyehere... but i rarely get dust on my sensor from the bellows, (i take a test shot of a white wall from time to time to check)
BUT as far as dust goes, I am ALWAYS changing the lens on my camera out wherever I am so no matter what, dust in getting in there... just like MelonMusketeer said... the dust is going to get there just from changing your lens anyways, so there is nothing you can do about it...
Everyone should have a 50mm (or 85mm) prime lens in their bag (no matter what brand of SLR you have) and they should pop it on whenever they are into that focal range to get the sharpest possible image... and that right there will cause the dust to leach in... so there isn't much you can do to avoid it... |
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