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 Replies: 53 / Views: 11,674 |
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Pillar of the Community
 2087 Posts |
Quote:
Do you know how many watts of led lighting you have No I don't the power supply/plug I am using is rated for only 6 watts of electricity... As for lumens I have no idea. The LEDs were two pin 5700 K interior decorating LEDs the come in rolls from 1.5 metres long to 5 metres Heres an example of the sort of Strip I am referring to: http://www.ebay.co.uk/itm/5M-3528-D...AOSw-vlVkMtnWater proof is not necessary I looked for the two pin strip( I purchased at my local hard ware store) its much easier to solder the joins . If you get the four pin strips then you soldering has to be very good or you can spend more money on connectors ( come in a variety of join types) |
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Valued Member
United States
215 Posts |
Can you possibly take a pic of a modern US cent? I have not seen anyone capture the true color.
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Pillar of the Community
2087 Posts |
yes I can. I took the opportunity to practice tethering( new soft ware). This straight out of the camera with the best cent I could find. I am not confident the focus was nailed meaning I think I could do better. Other than changing to a white grey background and converting from raw to Jpeg I did no editing.... what you see is as it came out of the camera.  Edited by austrokiwi
03/02/2016 3:07 pm
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Pillar of the Community
Canada
2784 Posts |
austrokiwi got a piece of glass first image with a ottlite second image with the light from Germany. the light from Germany was at 6500k. I can dim this light but I left it at max 6500k   |
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Pillar of the Community
2087 Posts |
OK I need some clarification here. I thought 6500 K related to the temperature of the light( in other words color) while the intensity was measured in lumens( hope I have spelt that right)
I can imagine dimming a 6500 K light source might change the color very slightly but I anticipate it would not be very noticeable
Is my understanding wrong? Can some one clarify please
Rocky those photos you posted you left the coin in the flip. If so its a really good example of one of the advantages of Axial lighting
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Pillar of the Community
Canada
2784 Posts |
austrokiwi here is the same coin still in plastic, taken with 2 diffused jansjo lamps plus a ottlite lamp. I read in mark Goodman book. more light faster shutter speed. sharper image. austrokiwi what I am learning about leds they are consider hard light. this is some of what I have been reading about. certain metals does not handle hard light well. it would be nice. if some where we could all work together. to find a lighting setup. that was made up of different sources. that would cover all the coins we deal with. here is that image I talk about from above.  |
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Pillar of the Community
Canada
2784 Posts |
austrokiwi yes you are right. 6500k is the colour. I believe that cool daylight which is 2700k. would preform better with this metal. that light is less intense. the more intense light brings out the hardness of the metal. I will be working on my axial lighting. plus I need to build that arch mount. at least give it a shot see what I get. have a great one
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Pillar of the Community
2087 Posts |
A proof ASE ( still in the capsule) I believe this is where this lighting really has an advantage ( compressed file )  Can some one tell me where the red tint has come from I have tried twice to compress the file both times the red appears. GRRRR I worked it out I left the Af illuminator on. With the AF illuminator off:  Edited by austrokiwi
03/18/2016 12:00 pm
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Pillar of the Community
 United States
4038 Posts |
The second one is actually more red-hued than the first according to their histograms.
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Pillar of the Community
2087 Posts |
I tried to be too fast and just used my old PC and shot in Jpeg......I really have to use raw and convert to Jpeg. Capture one, as complicated as it is for me, does a better job than the in camera processing
Edited by austrokiwi
03/18/2016 4:10 pm
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Pillar of the Community
2087 Posts |
Wanting to get the color right I re photographed the Reverse of the ASE in Raw, checked the curves and then transferred to Jpeg. Is it better?  The ASE is in the capsule of issue. I really didn't like the result.... I tried a very large medal( about 64mm) No capsule this time. Its a matt(acid washed dies) finish. I prefer this lighting with the medal rather than the proof coin.  Both cases lens was Oly 135mm F 4.5 @ 5.6 Edited by austrokiwi
03/19/2016 09:15 am
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New Member
United States
1 Posts |
this thread has been a great resource for me, as I'm building my own axial setup as we speak. seriously great shots.
i was wondering, exactly how does the angle of the beam splitter affect the look of the coin? we are thinking of rigging the glass in order to be able to reposition it, and have fine tuned control of it's angle, without disturbing or having to take apart the entire thing when switching between different coin grades. is this an idea we should move forward with, or do you recommend just having one set angle?
right now I have a square frame, (8x10) with diffusion on one side. I am in middle of making the shroud. we will probably be shooting with broncolor strobes, although we do have hot lights if that doesn't work out.
Edited by niki_naka
04/15/2016 2:20 pm
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Pillar of the Community
2087 Posts |
If you can build in the ability to adjust the beam splitter angle then do so, it adds flexibility to your equipment. I have read that others like being able to change the angle. I am not sure what would result... but thinking about it changing the angle will probably change how much light is reflected to the coin and alter the angle in which that light strikes the coin. In other words its worth trying
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Pillar of the Community
Canada
2784 Posts |
another a temp at axis lighting.  |
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Pillar of the Community
Canada
2784 Posts |
i was trying some more of this Axis lighting. tried it on a Canadian Half dollar.   |
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Replies: 53 / Views: 11,674 |
First Page
Posted 03/01/2016 5:06 pm
