From: Jim Thompson on 24 Mar 2010 15:13 On Wed, 24 Mar 2010 14:09:34 -0500, hal-usenet(a)ip-64-139-1-69.sjc.megapath.net (Hal Murray) wrote: >In article <kvkkq5ltlju7jh7b3v3d2s49g61sbcgh8t(a)4ax.com>, > Jim Thompson <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> writes: >>Trying to take close-ups of chips, is there some kind of stand/tripod >>to hold a camera pointing downward onto a desk surface? > >>What do you call it/where do you get it? > >If you want really good pictures... > >Microscopes usually include good illumination setups. >They often have a 3rd port setup for a camera. >Some have no eye-ball ports, just USB to your computer. > >For a chip, you don't need high magnification, at least >relative to what many other people need. > >Try searching for inspection microscope or disecting microscope. >Most of what you find will probably be more expensive than you >will like but you might find something that catches your eye >or get some ideas. I don't need that magnification... I'm just talking macro shots of I/C packages on PCB's. ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | The only thing bipartisan in this country is hypocrisy
From: Leon on 24 Mar 2010 15:31 On 24 Mar, 18:05, Jim Thompson <To-Email-Use-The-Envelope-I...(a)On-My- Web-Site.com> wrote: > Trying to take close-ups of chips, is there some kind of stand/tripod > to hold a camera pointing downward onto a desk surface? > > What do you call it/where do you get it? > > ...Jim Thompson > -- > | James E.Thompson, CTO | mens | > | Analog Innovations, Inc. | et | > | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | > | Phoenix, Arizona 85048 Skype: Contacts Only | | > | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | > | E-mail Icon athttp://www.analog-innovations.com| 1962 | > > I love to cook with wine. Sometimes I even put it in the food. I've got a rather expensive Manfrotto tripod with a pan/tilt head that I use with my Nikon D80 and a macro lens for taking photographs like that. Leon
From: Spehro Pefhany on 24 Mar 2010 15:37 On Wed, 24 Mar 2010 12:13:22 -0700, Jim Thompson <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> wrote: >On Wed, 24 Mar 2010 14:09:34 -0500, >hal-usenet(a)ip-64-139-1-69.sjc.megapath.net (Hal Murray) wrote: > >>In article <kvkkq5ltlju7jh7b3v3d2s49g61sbcgh8t(a)4ax.com>, >> Jim Thompson <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> writes: >>>Trying to take close-ups of chips, is there some kind of stand/tripod >>>to hold a camera pointing downward onto a desk surface? >> >>>What do you call it/where do you get it? >> >>If you want really good pictures... >> >>Microscopes usually include good illumination setups. >>They often have a 3rd port setup for a camera. >>Some have no eye-ball ports, just USB to your computer. >> >>For a chip, you don't need high magnification, at least >>relative to what many other people need. >> >>Try searching for inspection microscope or disecting microscope. >>Most of what you find will probably be more expensive than you >>will like but you might find something that catches your eye >>or get some ideas. > >I don't need that magnification... I'm just talking macro shots of I/C >packages on PCB's. > > ...Jim Thompson I have a giant copy board with lights around the outside, and the DSLR mounted above, and controlled from my computer's USB port. I have a macro lens and ring flash for very close work. Also a couple portable diffuser boxes for product shots (one home-made from instructions on the net using plastic tubing from Home Despot, and one smaller portable commercial one). Or, for occasional use and no cost, take a white pizza box, add background if you want, haul it outside on a cloudy day, and point the camera on a tripod down at the ground. Use a remote release dongle or just use the internal timer set to a second or two to avoid shake. You could probably simulate the cloudy day on a sunny day by draping a K-mart bed sheet over some kind of supports. Once you get a good high-res photo using diffuse light, you can fix anything else (like the PCB not being 100% straight or minor keystoning, color balance, contrast and brightness) in Photoshop or your favorite image editing program. Photoshop makes it particularly easy to do rectangular PCBs with the perspective crop feature.
From: D Yuniskis on 24 Mar 2010 16:17 Leon wrote: > On 24 Mar, 18:05, Jim Thompson <To-Email-Use-The-Envelope-I...(a)On-My- > Web-Site.com> wrote: >> Trying to take close-ups of chips, is there some kind of stand/tripod >> to hold a camera pointing downward onto a desk surface? >> >> What do you call it/where do you get it? > > I've got a rather expensive Manfrotto tripod with a pan/tilt head that > I use with my Nikon D80 and a macro lens for taking photographs like > that. I use a macro stand for *really* close closeups (e.g., a few inches). A tripod when I have to "get back a bit (put the target on the floor with tripod looking down onto it). And a CCD imager on a gooseneck sitting on my desk (tied to the PIP input on one of my monitors) when I need to look at something "up close" but don't want to dig out a magnifying glass. You can also buy cheapie tripods (with *flexible* legs) for small, lightweight digital cameras and bend them into an appropriate shape to "look down".
From: D Yuniskis on 24 Mar 2010 16:20 D Yuniskis wrote: > Leon wrote: >> On 24 Mar, 18:05, Jim Thompson <To-Email-Use-The-Envelope-I...(a)On-My- >> Web-Site.com> wrote: >>> Trying to take close-ups of chips, is there some kind of stand/tripod >>> to hold a camera pointing downward onto a desk surface? >>> >>> What do you call it/where do you get it? >> >> I've got a rather expensive Manfrotto tripod with a pan/tilt head that >> I use with my Nikon D80 and a macro lens for taking photographs like >> that. > > I use a macro stand for *really* close closeups (e.g., a few A ringlight is helpful, here, too! > inches). A tripod when I have to "get back a bit (put the target > on the floor with tripod looking down onto it). And a CCD imager > on a gooseneck sitting on my desk (tied to the PIP input on one > of my monitors) when I need to look at something "up close" > but don't want to dig out a magnifying glass. > > You can also buy cheapie tripods (with *flexible* legs) for > small, lightweight digital cameras and bend them into an > appropriate shape to "look down".
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