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Diffuse On Axis Lighting Rig: My Latest Iteration

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Pillar of the Community
Canada
2784 Posts
 Posted 06/16/2016  3:08 pm  Show Profile   Bookmark this reply Add rocky to your friends list Get a Link to this Reply
jhax welecome. see I like that look. I find that true axial lighting takes away from the coin. now I am talking about coins that are not in mint state. if you use axial lighting on slabbed coins. they appear grayish because of the plastic. how I over come that. I introduce a second light from above. I want my coins. to look as close as it can. to the coin in my hand. if you have another way to do this. please share with use all. we are here to learn any advise. would be greatly appreciated. thank you again hope to see some of your work. have a great one
Valued Member
JHax's Avatar
United States
302 Posts
 Posted 06/16/2016  4:38 pm  Show Profile   Bookmark this reply Add JHax to your friends list Get a Link to this Reply
Thanks, rocky, I wasn't sure if your light splash was deliberate or accidental. If it's deliberate and you like it, of course that's fine. Believe me, it's very easy to get accidentally when you don't want it!

Most of my photographic time is spent on toned copper (Google vicky cents and you'll find my online 1859 Canada cent catalog. I'm just getting back into shooting bright Au, Ag. I've been inspired by austrokiwi's setups and will be working on redesigning my old axial setup and building a lens-mounted board for shooting slabs. In the latter regard, I'm going to play with moving the LEDs out a little farther (to avoid any chance of flares off the holder surface and angling the lights slightly inward to compensate for their position farther from center. It doesn't hurt to try. Those strip LEDs are certainly cheap enough! Of course, I'll report back when I've got some useful results. I've been collecting for over 60 years and had my first B&W darkroom in 1965. For most of the time I struggled along with coin photography with the help of no one. It's wonderful that there are now sites where one can get new ideas and share our triumphs (and tragedies) with others....
Pillar of the Community
Canada
2784 Posts
 Posted 06/17/2016  10:46 am  Show Profile   Bookmark this reply Add rocky to your friends list Get a Link to this Reply
JHax I look very forward to seeing your work. there is a lot of very talented coin photographer here. I am sure they like myself. will be very happy to see how you do your photos. what I like here is every body brings. some thing to the table as they say. I find from that we all learn. there is some here thou. that are very good at this type of photography. I like how they show us there work. plus how to do what they are doing. have a great one. I will go and check your sight thank you.
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Gallienus's Avatar
United States
167 Posts
 Posted 06/20/2016  2:53 pm  Show Profile   Bookmark this reply Add Gallienus to your friends list Get a Link to this Reply
https://goccf.com/t/254675#2148296
Thanks very much for the info. I have been trying to create a "historical events behind coins" website & also a collecting philosophy. However it's difficult without good pictures.

I take really wretched coin photos. For example the following Argentine sunface 8 Reales I bought many years ago in Buenos Aires, Argentina. Last year when I brought it to a show, people said it was by far the finest "Sunface" they've ever seen. Yet no matter how many times I photograph it, the pictures always come out washed out like this.

Diffuse-On-Axis-Lighting-Rig:-My-Latest-Iteration
Valued Member
United States
441 Posts
 Posted 06/20/2016  6:19 pm  Show Profile   Bookmark this reply Add andywoj00 to your friends list Get a Link to this Reply
Gallienus....what are you using for a camera/lens and what are the different settings at (EXIF data)?
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Gallienus's Avatar
United States
167 Posts
 Posted 06/20/2016  7:47 pm  Show Profile   Bookmark this reply Add Gallienus to your friends list Get a Link to this Reply
Unfortunately I do not have the EXIF data. In fact until tonight I didn't really know that this data was stored with the jpgs. I edit all my photos in Corel Photopaint to combine the obv & reverse & also to resample to lower res.

Camera is a Sony NEX-6. My lens recently broke; well it now gives an electronic signal "Error lens not properly attached" whenever I try to use it. I can find nothing physically wrong with it.

The [defective] lens was a Sony SELP1650: an E-mount power zoom 16-50 E 3.5 - 5.6. filter diam 40.5mm I did not like the F range at all as most of the time I was unable to take pictures without flash.

I'm contemplating a fixed lens with a much better F setting, like a 50mm with F 2.8 or 2.0 if possible? I guess I need another E-mount ?

I did NOT like the power zoom and it makes the lens extend and retract every time you switch the camera on. This may use a lot of battery? I should also add that my coin photo taking goes back at least 25 years: to the days of old print film. Recently, however it's gotten much worse (like coin prices)!

Any suggestions you have would be greatly appreciated. I guess I should get that image splitter thing, a "Smart Series DOAL Illuminator".

Below is another one for you. This is the finest known Ecuadorian 5 francs: in an old NGC-65 holder. It's actually quite attractive in actuality although taking pictures of slabs is always problematic.

Diffuse-On-Axis-Lighting-Rig:-My-Latest-Iteration
Edited by Gallienus
06/20/2016 8:06 pm
Pillar of the Community
austrokiwi's Avatar
2087 Posts
 Posted 06/21/2016  07:46 am  Show Profile   Bookmark this reply Add austrokiwi to your friends list Get a Link to this Reply
I may be wrong but it looks to me like you might be using a F stop that is too large( meaning the aperture is too small. I gained that impression as on my computer screen the fields of the coin look softer than than the raised areas of the coin. With the Nex 6 you should be using an F stop number less than 8.
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Gallienus's Avatar
United States
167 Posts
 Posted 06/23/2016  2:20 pm  Show Profile   Bookmark this reply Add Gallienus to your friends list Get a Link to this Reply

Quote:
With the Nex 6 you should be using an F stop number less than 8.


Thanks Austrowicki. Actually I really liked your pictures about how you built the DOAL unit and plan to order those things from Edmunds Scientific soon. (I used to go to their store in NJ w/ my Dad when I was small.)

Anyhow I don't think my only problem is F stop. I've used many cameras over the past years and basically varied all the settings. Always the photos are poor. Recently I've found my cell phone takes poor closeups of coins. Below a semi P/L Brazilian 1200 reis 1843.


Since the lens on my NEX-6 broke I have to use my cellphone until I get a new lens. Do you have any recommendations for lenses?


Diffuse-On-Axis-Lighting-Rig:-My-Latest-Iteration
Edited by Gallienus
06/23/2016 4:24 pm
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