For many independent opticians, sales volume of used lenses is a crucial indicator of how the practice is growing. It is also a key data point to evaluate current sales trends and compare against peers. But what is actually being sold? L&T’s 2022 Premium Lens MarketPulse survey provides insight into the lenses and treatments most frequently dispensed. The report highlights the most popular lens designs, as well as the percentage of each lens that is a digital progressive or standard/aspheric single vision. The report also shows how sales of various lens types have changed over the past three years.중고카메라렌즈

Generally speaking, higher quality lenses sell better than lower quality lenses. The reason is that high quality lenses provide superior optical performance and are more likely to meet a patient’s needs. But there are exceptions to this rule. For example, some lenses (like wide angle zooms) may sell poorly because they aren’t very good at their intended function or they offer poor value for the money.

The other factor is how a specific lens was used by the original owner. If a lens was bought used and has been abused, the likelihood of it selling well on eBay is significantly lower than a less-abused version that was treated more gently.

This is because people who buy used lenses tend to be more particular than buyers of new products. A little wear and tear doesn’t bother most buyers, but excessive dust or scratches could have a serious impact on the functionality of a lens. This is why it’s important to take a few simple steps before buying a used lens.

The first test is to inspect a lens for fungus or mold. This can grow from condensation or humidity, and if left unchecked will eat away at the glass over time. Another test is to use the middle autofocus point in good lighting and switch between focusing on something close up and something far away. This is a quick way to check for sharpness and distortion. Lastly, it’s worth taking note of the box that a lens comes in. Sites like KEH will price items that are complete with boxes at a higher price than those without, which suggests that the packaging adds value to the product and helps reinforce that the lens was used by a careful owner. This is why I always bring a lens case when shopping for lenses in person, even though it takes up space on my camera shelf.럭키카메라