The vendor number to the left of the legal name is the SIGMA vendor number. Log Into your SIGMA account 2. Go to the Addresses & Contact tab. Address id is the left of the address you want to use. Axpayer Identification Number Search Individual Search OR Legal Business Name OR To see have a vendor code and have a Socia. Sigma-Martin USA guitars built in 1981 and 1982 only, had specifically assigned serial numbers ranging from 900,001 to 902,908 (2,908 in total.) These serial numbers are documented by C.F. And to this day remain the only Sigma related serial numbers that are publicly available. The actual model number is of little or no importance. Sigma guitars are very nice entry level, backup or stage instruments. There is a lot of unfounded praise levied at these instruments, mostly because of their association to Martin. Just to lose this.thread, it appears the Sigma serial numbers were not recorded by date. However, I noticed that my guitar has a zero fret which puts it in 1970.

To determine the age of a Canon lens based on the new 10-digit serial number we have to visually break down the number into two, one and seven digits: DD A SSSSSSS The first two numbers DD correspond to the manufacturing date.

About 8 months ago I purchased a new Sigma 50-500mm f/4.5-6.3 DG OS HSM APO lens (that’s a mouthful). I bought it during the final heydays of Microsoft ‘s Bing Cash Back program, when they were giving away cash on pretty much anything you could find in a search engine. Ah, the good ‘ol days.

I never actually opened the box because at the time I wasn’t sure whether I’d be using Canon or Nikon for my long focal length shooting and have since decided on Canon for the long stuff. I finally got around to listing the lens for sale on fredmiranda.com and found a willing buyer who only asked that I test the lens out first to make sure it doesn’t suffer from any Sigma-esce focusing problems.

Sigma Lens Serial Number Search

I mounted the lens on my D7000 and did some IQ tests first. Images looked great – sharp at 500mm @ f/6.3, sharper still at f/8.0.

Not a light speed demon by any means but for the price and focal range I consider the Sigma a good deal. Then I did my focus tests and uh oh, the lens started bucking like a donkey at 200mm. Either it would refuse to focus, meaning nothing happened when I pressed the back-button focus on my D7000, or the lens would do a few jerks to humor me and then just sit there like a sad, graphite-colored puppy. For the few times it actually attempted to focus it would take about a second to shift through its non-focal-distance-limiter-support range (in other words, no focal length limiter switch like on Canon/Nikon telephotos) and then give me that comforting focus confirmation “beep” on my D7000, only to be greeted by great bokeh that covered the entire range of frame, including the subject I was attempting to focus on.

In other words, it was completely out of focus. Same results at 300mm and 400mm, but better at 500mm. Needless to say the sale is off, at least until I get the lens fixed. To Sigma’s credit I looked up my serial number and it does fall within the range of recalled copies for the 50-500mm OS line, a recall that was proactively announced by Sigma all the way back in July 2010. So Sigma knows about the issues and got in front of the problem so it’s up to me to do my part and send the lens in for an AF motor tuneup.

Sigma Dr-28h Serial Number Lookup

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I’ll reevaluate the AF when it arrives back and post my results. In the meantime here’s a video showing the AF problems I observed.

I have had my 50-500mm for just short of three years and really still love such with my Nikon D300. For the first time just three nights ago I took numerous photos of the rising full moon. Every photo was taken tripod mounted with various shutter speeds and aperatures. Obtained many excellent manual exposures but not one single one of them are sharp focus. I took moon photos with a leased identical lens over three years ago and obtained some crystal sharp moon images.

Unfortunately not now. Any suggestions or do I just need to have such repaired. I’m down in south Florida. Hi Robert, I received my copy back from Sigma last week. They did the recall mods on it (replaced the lens barrel) but they were unable to reproduce the focusing problems.

I still have the same focusing issues with the indoor lighting I originally tested it with, but when I took the lens outside with my D7000 it nailed focus nearly 100% of the time. Safe4cam free download. It appears the issue I have is in limited light situations, or perhaps a combination of the LV and light temperature.

It sounds like your D300+lens has gone out of calibration; I’ve never had that happen to me but I’ve read it happens rather frequently for pro’s who use their cameras heavily (these are mechanical elements). I’d suggest checking if you can get the lens within acceptable focus using your D300’s AF tune. If the calibration is off beyond what AF tune can accommodate then yeah, sounds like you’ll need to sends the lens to Sigma. Some people send both their camera+lens to Nikon for tuning/matching but I’m not sure Nikon would tune the camera to a 3rd-party lens.

Sigma Guitar Serial Number Lookup

- 11265 - 11364-ROM • Production era - 1990-1997.

Sigma Serial Number Lookup