#HOW TO TEST A LENS HOW TO#
#HOW TO TEST A LENS MANUAL#

The length of that guarantee may vary, but a reputable dealer will always offer one. If you buy a second-hand lens for your camera from a dealer then it should always come with a money-back guarantee.

#HOW TO TEST A LENS MANUAL#

Manual focus: 3 modern technologies that make sharp images easier.

Is it tight or does it give resistance? Does it feel sloppy? YouвЂ™ll know immediately if it doesnвЂ™t feel right, and if this happens you shouldnвЂ™t buy it. Lastly, you want to test the manual focus ring. If all is good so far, then dial in Continuous or Predictive focus and check it again. Take a few test shots to check the accuracy and responsiveness of the lens. Mount the lens youвЂ™re looking to buy on your camera, and set single shot focusing. If any of its blades feel sticky, put it down, walk away and donвЂ™t look back. Something we always make a point to do is test a lensвЂ™s aperture with the optic both on and off the camera.

#HOW TO TEST A LENS HOW TO#

What lens is best for your camera? HereвЂ™s how to chooseвЂ¦.What we mean by this is that the front and rear elements should be free of scratches, and the internal elements should also be free of dust and, yes, fungal growth (which happens sometimes in older optics if they are not stored correctly).ДЄs above, try to confirm this in writing with the seller if you do not have an opportunity to handle and use the lens before purchase. If youвЂ™ve bought a second-hand lens for your camera that was advertised in mint or near-mint condition you should rightly expect that it has no optical blemishes. If you experience any problems, contact the seller immediately. If you buy a second-hand lens for your camera online, make sure you test the lens as soon as it arrives. Doing so will give you a quick feel to make sure everything works and that the elements havenвЂ™t been knocked out of line, which can cause soft images. Just like buying a car, when buying a second-hand lens for your camera you should ideally test it out.

A quick internet search, though, will usually provide you with the answer you need. Manufacturers sometimes change the chips and electronic contacts in their cameras and lenses, so an older lens from your brand of choice may not always be compatible with a newer camera. Just because you shoot with a brand and want to buy a second-hand lens from that same brand, doesnвЂ™t guarantee it will work. Below we offer some quick tips for helping you choose the best option when buying a second-hand lens for your camera. We would all love to have a brand-new lens for our camera, but the reality is you can save yourself a small fortune by purchasing your next optic second-hand.

How to test a lens