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Replies: 27 / Views: 3,528 |
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Pillar of the Community
United States
2254 Posts |
Quote: and Learjet achieves superb results with a flashlight and a pinhole cam Quote: What is his setup? Not sure which body he uses, but this is Kurt's macro lensI myself am an Olympus fan. Strictly for point and shoot. For me, they have been bulletproof, and are pretty good on full auto. I have not checked out their DSLR's yet, but I will be in the market eventually. Nikon and Canon have the optics for sure, and this is where the money is in cameras really. Below is a full auto shot with nothing but a tripod with my Olympus point and shoot. If you click on it, it gets nice and big. Eventually I will work on lighting and such and dial in everything. Just waitng on Dave's tutorial to be complete to see if I can copy the setting over. 
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Valued Member
 United States
60 Posts |
Tights - nice picture of that Morgan. Which Oly are you using? One general issue I see is that the macro close-ups of coins are *so* good, that they are far better than the naked eye. Typically, when I have been to coin shows, peopel will buy/sell/trade based on naked eye. It is true that some of the more serious buyers will use a loupe for the higher grade, higher priced coins ($50 or more it seems), but on ebay and online, these macro images make an MS-63 coin look "bad" to some buyers. Any thoughts?
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Moderator
 United States
23522 Posts |
Quote:One general issue I see is that the macro close-ups of coins are *so* good, that they are far better than the naked eye. Typically, when I have been to coin shows, peopel will buy/sell/trade based on naked eye. It is true that some of the more serious buyers will use a loupe for the higher grade, higher priced coins ($50 or more it seems), but on ebay and online, these macro images make an MS-63 coin look "bad" to some buyers. Any thoughts? It is just as important to make allowances for the unyielding accuracy of a high-resolution shot as it is for a poor photo or a scan. As you say, grading involves the trained eye and use of no more than a 5x loupe, and many of us post pics which greatly exceed that resolution. Case in point:  Would you grade that coin MS65? NGC did. To be completely honest, I reduce the picture size of slabbed coins I sell on ebay, for that specific reason. Just for the record, I lit that shot with a circular fluorescent lamp completely surrounding the lens. That's why the luster and shadows are funny.
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Pillar of the Community
United States
2254 Posts |
Quote: Which Oly are you using? Here is My cameraMy pictures pale in comparison to some here. It takes a different eye for quality to see you could say. When you get used to looking at photos like Dave's, you can pick out the deficiencies in photos like mine. Am I happy, of course. Do I want better, of course.  If you peruse this section of the forum, you will soon find out how bad really nice coins in hand can look when they are subjected to good optics. Cameras hide nothing, and when you get to the level of DSLR's and macro lenses like Dave and Kurt, it will probably be difficult to find ANY coin that would grade above MS64 or MS65 without softening things a bit. Dave's picture is case in point.
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Valued Member
 United States
60 Posts |
Great points, Superdave. :)
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Pillar of the Community
United States
1571 Posts |
Can anyone tell me what I am doing werong? I tried different distances fron the front of the lens, and used the TV out to see the effect, and to focus. None of the views were, to me, what I am looking for. I tried to use the LED, but my vision won't let that happen. I just realized, that possiblty, my efforts have not been seen yet, because I have not exported them to some program where they can be evaluated. Could this by "part of the problem?" Not to mention the big part being "i just don't know how to work the darn thing"! Comments welcome! Dick
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Moderator
 United States
23522 Posts |
Are you using a TV or a computer monitor for the TV out, Dick? The average TV isn't even close to being able to show the resolution your camera is actually "seeing," and as a result you're not likely to get an accurate picture of what the picture will be....golly, did you understand that? I didn't.  Take pictures, and look at them on your computer screen. Let the camera autofocus - if it won't autofocus even one time out of five, your working distance isn't right. What isn't coming out as you want?
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Pillar of the Community
United States
1571 Posts |
SuperDave, The output on the camera goes to a CCTV minitor, and cuts off the LED on the camera. I feed the images to a 2GB stick, and then download the images. Thet all were the same as on the monitor. I was thinking, that the size of the picture is not going to show on the monitor, as it would in the PS, or other camera program. There it "should" give some relationship as to the size of the picture, brfore cropping, etc. Am IO correct? I took several pictures, and at different distances from the face of the lens, for the focusing effect, but most had to be about 3"+/-. I can't focus my vision, because I don't have any frontal vision. I have a condition called "Macular Deterioration". It affects the ability of the retina to form images. My periphil vision is fine. In other words, I can't se the SOB, that ran over me from the front, but I can see where he turned into a dark alley! Yes, I undeerstood your comment re the resolution. I use the regular TV for SIZE, to check the MM for RPM, etc, but, unless I have the image going thru a scope, with zoom, so as to compare with another image, I dion't have much to go on. I am going to send an email with the images to, "myself", and between "me, myself, and I", there might be something useful. That shluld give me some indication of what I want to do. Dick
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Pillar of the Community
United States
2669 Posts |
Before getting a better lens, I used one of these to get 'closer' to the coin: http://www.garrettwade.com/large-su.../23T01ddd21/That one is only 2x but it sure helped a LOT. The coin went underneath and the camera was pointed straight down with the lens nearly touching the plastic of the magnifier. It can get a bit awkward but it was worth it to have larger detail. You could probably find one with higher magnification, too. It's far enough away for the smaller or less powerful cameras to be able to focus, yet still help get the details 
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Pillar of the Community
United States
2669 Posts |
Oh - one thing I was going to try was putting some type of small lights on the underside of the top portion, pointing down, to provide light directly on the coin. I haven't gotten to that part yet.
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Pillar of the Community
United States
1571 Posts |
xshift, I have two lighted loups, that I use for readinf fine print. maybe they will work. I laso have a2X? 5" poupe on an extension, that I use for sorting. I'll do some experimenting, and see what comes out. I found a coin yesterday that has no lettering, other than two letters in the upper space in a crown, or maybe it is a "coat of Arms": V B . The other face is only a crown. It is "brassy-looking". I'll have to install the rest of the drivers for that camera, to be able to post a picture. It is about the size of a quarter, (slightly larger).     The lighter pictures are w/o flash, and the darker, are more natural colored. what is it? thanks for lookimng. These BTW, are thru the scope, with the Photocam plus. *8 MB, but no optical X. Dick
Edited by livingdinasaur 02/04/2009 4:40 pm
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Pillar of the Community
United States
2669 Posts |
Looks like you'd have a bit of trouble with larger coins, but really, these aren't bad pictures. The lighting does look a little harsh with the flash. If you try your lighted loupes, experiment by taping a strip of white copy paper (bright white - higher white numbers on the package) over some or all of the lights to get a muted/diffused light effect. This will partly or totally eliminate harsh shadows.
As for the coin ... might be a game token of some sort? There's no denomination or date. You could try posting it in the Identification forum, too.
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Pillar of the Community
United States
1571 Posts |
xshift, that is just the tip of the iceberg! I can't get a whole coin, unless it is a dime, or cent. I am using minimum zoom, on the scope,,and still can't get more than that shown. I think I mis-led you with the loupes, as they are small ones I use for reading fine print, like in a menu, or maybe a MM. Most of the time, I have to use the scope, or my CCTV system to read mags, books, papers, etc. There is another lens that screws onto the base of the scope, but it doesn't seem to be of much help. My old camcorder,was very good for viewing, just about any sized coin, or anything else. The zoom on it was great enough that I could use it for RPM's, and varieties, but the electronics "went west", and I had to get rid of it. I next used the zoom lens from my big color camera. I turned it y up-side down, and was able to get some nice shots. I just bought a new Powershot, A590 IS, and for shots of landscape, it is beautiful. I can't get a shot of a coin in focus, much less show a detail. I have read the book several tikmse, but so fsr, no luck. Too many buttons, dials etc, etc. One of these days... I'll post that coin on an other forum, and see what they say there. I recently bought the same setup, (materials, etc) that SuperDave posted, with the track lights, etc, but have not hooked it up, yet. More concerned with the rain, and the side of the house, being exposed to the elements, due to the wind tearing off my awning!@ It is on the "leeward" side of the weather movement, but that still doesn't solve the problem. I suspect I should have used some of the strips of the "drip-catcher", to covet the opening above the walls. I can't tell how far down from the rafters it geos, before being blocked, but water knows no boundries,and if it gets inside, the sheet-rock will mwelt! That means that my wife will be VERY unhappy, as she just put in new carpeting! Dick
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Pillar of the Community
United States
2669 Posts |
Looks like you may need to get your honey-do's done first before setting up your rig  If Momma ain't happy... !
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Pillar of the Community
United States
1571 Posts |
xshift,  you are SOOOOO right!  Dick
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Replies: 27 / Views: 3,528 |
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