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 Replies: 48 / Views: 7,430 |
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Pillar of the Community
 United States
4038 Posts |
The problem I've had with the USB cameras is their terrible software. They typically have poor control over exposure, white balance, etc. I personally hesitate to purchase another USB camera without verification the software gives me good control over critical parameters.
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Valued Member
Russian Federation
172 Posts |
Yes, such cameras with own professional software cost much more https://www.ebay.com/itm/OMAX-14M-P...400794355661But it is only alternative for those who need more or less good close up pics for web like this board, not for exibitions or the printed catalogs. It can save hundreds bucks for stacking hard and soft per DSLR Edited by Justwalking
04/23/2019 9:50 pm
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Pillar of the Community
United States
4038 Posts |
Hah! I have one of those OMAX cameras, and the software sucks. This is one of the USB cameras I have tried, with little success! Have you tested one of these cameras?
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Valued Member
Russian Federation
172 Posts |
No. I'm satisfied with mine soft. If I don't like something I always can correct it in postprocessing. But in 3/4 cases I do nothing and second that photography is not main goal for me. Mostly I use it as HDMI video whithout delay for live picture on big TV screen. Just point and shoot when I want it like this dandelion   or coin ) Edited by Justwalking
04/23/2019 10:35 pm
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Valued Member
Russian Federation
172 Posts |
Trying Keyence Ca-lm0510 on 1c F/2.8, w.d.=130mm, ~0.6X One 1Watt led  1X F/2.8 w.d.=90mm, slant to camera  1x F/4  Edited by Justwalking
04/24/2019 7:13 pm
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Pillar of the Community
United States
4038 Posts |
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Pillar of the Community
United States
4038 Posts |
Ahh, it's the same one linked before, with $90 pricing. Looks pretty good.
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Pillar of the Community
United States
4038 Posts |
Can you do an aperture sweep with that lens, and show 100% crops? I think the camera you're using probably has 1.3um pixels, correct? Will be good to see what the details look like and how far you can push aperture before getting fuzzy. Maybe do this at 0.5x mag?
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Valued Member
Russian Federation
172 Posts |
Getting fuzzy from f/8 and higher as most of any other lenses. There smooth aperture ring from f/2.8 to close. It is 100% crop from the middle pic above  Edited by Justwalking
04/25/2019 09:34 am
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Pillar of the Community
United States
1353 Posts |
Using a Celestron pro model 44308.....can't get the lighting right....any suggestions.
Also is there better software then the capture pro. Thanks all in advance.
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Valued Member
Canada
276 Posts |
Quote:
Using a Celestron pro model 44308.....can't get the lighting right....any suggestions.
Also is there better software then the capture pro. Thanks all in advance. I use the same Celestron model for my coins. I do not use the built in LED light on the Celestron. I use 2 LED desk lamps ( search Amazon), that have 3 brightness settings, and configure the brightness setting depending on the toning of the coin. I position one or both lamps over or beside the Celestron. I take the photo with capture pro and use an image editor later on. I am not sure if there is other better software than capture pro for the Celestron. I use ACDSee image editor for my coin photos. Yes, you have to pay for it. Resize, Full 360 degree rotation at the palm of your hand, Lighten, Darken, Contrast, Cut, Paste, etc. Edit: I just found out there is a free edition of ACDSee without some of the bells and whistles. If you have Windows 10 installed on your computer/laptop etc., there is Paint 3D for free. Edited by the_sifu
05/01/2019 1:38 pm
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Valued Member
Canada
276 Posts |
Here is an example of a Canadian coin taken with the Celestron, with one LED lamp overhead on high brightness.   Edited by the_sifu
05/02/2019 9:56 pm
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Pillar of the Community
United States
1353 Posts |
Nice.....you just turn the light on the scope all the way off?
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Valued Member
Canada
276 Posts |
Quote:
Nice.....you just turn the light on the scope all the way off? Yes. The picture posted previously was taken, with the Celestron built in LED light turned completely off. LED desk lamp on the high brightness placed on top of an old book shining down over the Celestron with the coin in a 2 x 2 holder. After you have focused on the detail of the coin. If you have a plain desk lamp, or flashlight. Play around with the angles of the light directed at the coin at a distance. Though I recommend an LED desk lamp or two of them and play with the positioning to get the picture you want. The broader the light source, the softer the light on the coin, the better the picture. Just an FYI, I added the pictures posted previously to my flickr account. I have a flickr app on my cellphone. I take my coin collection on my phone everywhere. Show them off to other fellow coin collectors as it is much safer than bringing the actual coin. Practice and good luck. |
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Pillar of the Community
 United States
3281 Posts |
Wow this post blew up in the last few months, guess I got a lot to go on now.
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Replies: 48 / Views: 7,430 |
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Posted 04/23/2019 9:46 pm
