Datacolor Spyderlenscal SLC100 Lens Calibration System, Black/White

This Lens Calibration System is one of the best available in the market. If your DSLR supports AFMA (Auto Focus Micro Adjustment), then this Calibration System is a must buy. No camera or lens s perfect and if you are a avid photographer, you will find that most camera-lens combinations either have front-focus or back-focus problems. This Calibration System helps you calibrate your camera-lens combination for perfect focus every time. Recommended calibration once every 3 months or so, depending on the performance of the camera-lens system.

Used it for my Tamron 150-600.

Useful to have.

Le prix a bien augmenté mais l'article est conforme et très utile pour l'usage requis. La qualité est bonne.

One of my camera lenses, bought second had some years ago, has always had a tendency to back-focus (subject is out of focus, with sharp focus falling on a point behind the subject) . That's not such an issue with images shot at a distance, but its irritating when trying to take close-ups. My camera has the facility to pair with a given lens and, with the right tools, or by simple experimentation, trial and error, this can be corrected. I've tried to do this in the past with home-made focus calibration devices, but never with much success. I spotted this tool while looking for some lens-caps and thought I would give it a try. It's easy to set up, and with the bit of research (there's a number of YouTube videos' that demonstrate how to use this tool), I was able to calibrate all of my lenses in a few hours. Having gone through the calibration procedure, I've found that all of my lenses back-focused to a greater or lesser degree, and the one lens that was clearly a long way out of whack is back in trim again and now focuses to perfection. So, five stars for Accuracy, and five stars for ease of use. It takes a bit of practice, but within a few tens of minutes, I was able to able to make adjustments on my camera quickly and accurately based on the information gleaned from using the tool. Four stars for value for money. It's a damn good tool, no question, but it's very expensive for what is only a bit of moulded plastic with stickers on. Having said that , it's a fraction of the cost of several of my lenses, so I guess it's not a ridiculous price to pay. If you absolutely must have pin-sharp images and your camera is capable of retaining the micro-focus adjustments necessary to get the best out of the lenses, then this is a great little gadget.

Het product doet waar het voor is en is daarvoor een aanrader. Maar, het is gewoon veel te duur voor wat je krijgt. Een simpele, in een hoek te plaatsen, plastic liniaal. De verpakking is volledig geseald dus die moet je open knippen aan de randen en is daardoor bijna niet meer bruikbaar. Aangezien er geen opbergdoos is meegeleverd (?) had het zeer wenselijk geweest dat de verpakking daarvoor gebruikt kon worden maar die moet je open knippen en werkt daarvoor dan echt minder. Zelf in de aanbieding gekocht voor 37,95 (wat ik al (te)veel vind) maar de adviesprijs van 64,99 is echt veel te veel. Enfin, voor kalibratie een prima product.

So happy I bought this vs struggling with DIY printed stuff. I also tried the "pyramid" and was not happy with it's quality considering its cost. While the Datacolor is not exactly cheap in price, the lack of frustration over now having a decent tool to use is worth it for me. This Datacolor is sturdy when in use, yet compact when folded for storage. I placed mine on a kitchen table, then placed my cameras on a tripod with lens at same level as center of Datacolor tool. I used a self timer mode to shoot each photo rather than risk camera movement from depressing the shutter myself. From there, it is just a matter of zooming in on photos taken and comparing results vs what a calibrated lens/camera combo should be (as listed in instructions and all over interent). Then make focus adjustments per your camera instructions. I was surprised at how far mine were off and this solved a good many of my out of focus issues. I mostly photograph action sports at high shutter speeds with a very small focus point, at f/2.8 on a 70-200 Tamron or Canon zoom.

El material es resistente y de buena calidad, por el precio menor a 800 pesos se me hizo una buena opción ya que no es de cartón y los números están nítidos. En especial para la calibración de los sigma