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 Replies: 12 / Views: 1,636 |
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Valued Member
United States
249 Posts |
I've been holding a 5x loupe in front of the lens! It works about as well as a wine cork for the Titanic. So is there ANYTHING I can use/get for this camera series to use to take even " a little better" photos of coins? The lens itself has no threads, but the shroud it retracts into has female threads so there must be something that screws in there.
Any thoughts appreciated.
regards, mitch
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Moderator
 United States
23522 Posts |
Have you tried the actual macro function of the camera itself? A little research indicates it has a Macro field of view that will only capture a little more than half of a Morgan, which is pretty stupendous.
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Valued Member
 United States
249 Posts |
Yes, problem is by the time your that close, the camera obscures the lighting! I noticed, in pictures of Heritage Auction's photo room, that the cameras are a good 2ft. from the coin; suspended directly overhead and the photographer is looking at it all on a laptop while shooting the pix.
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Pillar of the Community
United States
1476 Posts |
I believe they are using a dedicated Macro lens for their coin images.  |
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Pillar of the Community
United States
1304 Posts |
I bet heritage uses at least a 105mm macro lens
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Pillar of the Community
United States
5825 Posts |
Quote:
I bet heritage uses at least a 105mm macro lens At least. And there used to be a 155mm macro lens but I don't know if they make them anymore. I use a Nikkor 60mm macro lens which is MORE than enough for my purposes. |
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Moderator
United States
23522 Posts |
Westcoin just toured the place; his thread about it is down the page in this forum. They use Canon 180mm Macro lenses. $1400 each and they have a roomful.
Let me see what I can find out on this Sony.
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Valued Member
United States
249 Posts |
I guess I should mention I also have a Cannon EOS 20-D as well. However, it's got something wrong software wise that I can't seem to fix. In transferring the images from camera to computer, it gets all fouled up. I've given it to a new friend that came in my shop that is, by his own admission, a camera whiz so we'll see it that can work out. Then I'd have a good old camera no?
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Pillar of the Community
United States
9395 Posts |
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Then I'd have a good old camera no? Does the Canon 20D have live view? |
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Moderator
United States
23522 Posts |
The 20D does not have Live View, and isn't compatible with the tethered-shooting technique we teach here. There was a modification to the 20D for astrophotography, called the 20Da, which is (to my knowledge) the first implementation of Live View on a dSLR.
So it would be a capable camera, if a bit laborious in use and probably better off with an autofocusing lens.
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Valued Member
United States
249 Posts |
What is "live view"? like seeing what the camera sees on a computer screen? What would be the best entry camera for such?
edit: found the definition... still, what choice for a camera? entry level or a little better?
Edited by rynegold
05/31/2015 10:30 am
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Pillar of the Community
United States
9395 Posts |
Live view is a great step forward over using the optical viewfinder for focusing. In addition, some modern Canon cameras have the Electonic First Shutter Curtain feature that is turned on when shooting from live view.
It's interesting that the 20Da (without the usual greenish filter over the sensor, to allow for better capturing of H-alpha regions in deep space objects) would have introduced live view, since I never found live view on a astro-modded T3i useful for DSO astroimaging. It's too dark to see anything with live view, especially when you're using a narrowband H-alpha filter. I have to focus with 15-30 second test exposures, and this can take 15 minutes or so to get good focus. Maybe live view would work with a big scope on a bright star, with no narrowband filter?
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Pillar of the Community
United States
1476 Posts |
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Maybe live view would work with a big scope on a bright star, with no narrowband filter? How big a scope are we talking her? And which type? Living in Florida it's hard to image with the cheap setup I have because of the humidity and the fact you almost need to be covered in mosquito netting to stay long enough to shoot.  |
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Replies: 12 / Views: 1,636 |
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Posted 05/30/2015 3:11 pm
