What do you call it/where do you get it?
in [Design]
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From: GregS on 25 Mar 2010 14:09 In article <ts4nq5l8rggqfh8eji6hcbr99e9tpedt79(a)4ax.com>, qrk.org wrote: >On Wed, 24 Mar 2010 12:31:47 -0700 (PDT), Leon ><leon355(a)btinternet.com> 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? >>> >>> � � � � � � � � � � � � � � � � � � � � ...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 > >It's called a copy stand. You can use a tripod if you're not doing >this often, but harder to set up. Lighting is the biggest problem. A >couple links to lighting suggestions below. I find the gallon plastic >milk jug diffuser with two or three work lights with 100 watt >equivalent fluorescent bulbs to be very handy. Another way of >"photographing" chips is put them on a flat bed scanner. They have >sufficient depth of field to scan PCBs with 0.2" tall parts. > >Copy stand: >http://www.bhphotovideo.com/c/search?Ntt=copy+stand&N=0&InitialSearch=yes > >Lighting: >http://www.washingtonpost.com/wp-srv/photo/essays/vanRiper/020809.htm >http://www.sigma-2.com/camerajim/cjgcoins.htm > Don't forget using a plain scanner for many things. greg
From: Spehro Pefhany on 25 Mar 2010 14:47 On Thu, 25 Mar 2010 18:09:50 GMT, the renowned zekfrivo(a)zekfrivolous.com (GregS) wrote: >In article <ts4nq5l8rggqfh8eji6hcbr99e9tpedt79(a)4ax.com>, qrk.org wrote: >>On Wed, 24 Mar 2010 12:31:47 -0700 (PDT), Leon >><leon355(a)btinternet.com> 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? >>>> >>>> � � � � � � � � � � � � � � � � � � � � ...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 >> >>It's called a copy stand. You can use a tripod if you're not doing >>this often, but harder to set up. Lighting is the biggest problem. A >>couple links to lighting suggestions below. I find the gallon plastic >>milk jug diffuser with two or three work lights with 100 watt >>equivalent fluorescent bulbs to be very handy. Another way of >>"photographing" chips is put them on a flat bed scanner. They have >>sufficient depth of field to scan PCBs with 0.2" tall parts. >> >>Copy stand: >>http://www.bhphotovideo.com/c/search?Ntt=copy+stand&N=0&InitialSearch=yes >> >>Lighting: >>http://www.washingtonpost.com/wp-srv/photo/essays/vanRiper/020809.htm >>http://www.sigma-2.com/camerajim/cjgcoins.htm >> > >Don't forget using a plain scanner for many things. > >greg Good point. We looked around and got a scanner with a large depth of field so that it can handle objects up to an inch or two thick. I prefer the camera myself for important photos, but the scanner is excellent for documenting things quickly. Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" speff(a)interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
From: Spehro Pefhany on 25 Mar 2010 14:48 On Thu, 25 Mar 2010 05:50:47 -0700 (PDT), the renowned Leon <leon355(a)btinternet.com> wrote: >On 25 Mar, 11:33, Ken Moffett <KLMoff...(a)comcast.net> wrote: >> Jim Thompson >> <To-Email-Use-The-Envelope-I...(a)On-My-Web-Site.com> wrote innews:kvkkq5ltlju7jh7b3v3d2s49g61sbcgh8t(a)4ax.com: >> >> > 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 >> >> Many of the tripods I've used allow you to move the tilt/pan >> head from the top of the elevation post to the bottom. �This >> places the camera in a position that works great for shooting >> straight down at an object, like a copy stand, �I've also found >> that, when shooting �at extreme close-ups, pushing the trigger >> can vibrate the camera and blur the image. �I use the timed >> trigger to eliminate that. >> >> Ken > >That's what I do with the Manfrotto tripod I mentioned previously. > >I used to use the timer, but I then made my own IR remote. They are >made by Nikon, but cost a lot more. > >Leon Aside from weighing nothing, looking cool etc. what are the advantages of an $800 Manfrotto carbon fiber tripod/head over my 30 year old telescoping aluminum Slik tripod? Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" speff(a)interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
From: Phil Hobbs on 25 Mar 2010 13:46 On 3/25/2010 2:48 PM, Spehro Pefhany wrote: > On Thu, 25 Mar 2010 05:50:47 -0700 (PDT), the renowned Leon > <leon355(a)btinternet.com> wrote: > >> On 25 Mar, 11:33, Ken Moffett<KLMoff...(a)comcast.net> wrote: >>> Jim Thompson >>> <To-Email-Use-The-Envelope-I...(a)On-My-Web-Site.com> wrote innews:kvkkq5ltlju7jh7b3v3d2s49g61sbcgh8t(a)4ax.com: >>> >>>> 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 >>> >>> Many of the tripods I've used allow you to move the tilt/pan >>> head from the top of the elevation post to the bottom. This >>> places the camera in a position that works great for shooting >>> straight down at an object, like a copy stand, I've also found >>> that, when shooting at extreme close-ups, pushing the trigger >>> can vibrate the camera and blur the image. I use the timed >>> trigger to eliminate that. >>> >>> Ken >> >> That's what I do with the Manfrotto tripod I mentioned previously. >> >> I used to use the timer, but I then made my own IR remote. They are >> made by Nikon, but cost a lot more. >> >> Leon > > Aside from weighing nothing, looking cool etc. what are the advantages > of an $800 Manfrotto carbon fiber tripod/head over my 30 year old > telescoping aluminum Slik tripod? > > > Best regards, > Spehro Pefhany The Manfrotto thing that's really the most useful is the Magic Arm (sold by Bogen). It's $100 and a thing of great beauty. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal ElectroOptical Innovations 55 Orchard Rd Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net
From: mpm on 25 Mar 2010 21:22
On Mar 24, 1:05 pm, 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. Sniff around BHPhoto and Adorama in their tripod departments. I'm sure you'll find something. But really, can't you just make something youself? Unless time is money, and all that. Either way, should cost very little. Any horizontal stand with a 1/4-20 bolt will do... Copy stands are also used in silkscreening, so you might Google those suppliers as well. As for lenses, a macro lens on a 35mm SLR is probably ideal. A ring light (light or flash that goes around the lens) will provide nice even lighting, but you can get by without, with a little care and attention. I recently saw what I thought was a pretty cool invention (probably not new?) It was this contraption that fit over your SLR's flash attachment and using either a bunch of fiberoptic strands, or maybe plastic mirrors, would bounce the flash down this "tube" and it would come out in a manner very similar to a ring flash. It probably cost 3-stops worth of light, but it's like a $20 ring light. Pretty cool, if you do a lot of that work and don't want to spend the big bucks. Someone else mentioned a focusing rail if you find depth of field is a problem for your (existing?) lenses. If so, try www.reallyrightstuff.com Last time I checked, they carriers some fairly inexpensive focusing rails. But I doubt you would need one for the example image you posted. Also, when lighting your image, let the light angles bounce away from the lens. Put your lights at 45-degree angles for example, and you won't overexpose. The angle of incidence equals the angle of reflection, so always use that fact to your advantage when lighting your subject. -mpm |