When it comes to producers making their debut on the market we always try to check the transmission level of their instruments. It provides a lot of info concerning the quality of coatings and other technologies implemented. Let’s have a glance at the transmission graph of the Creator 2/35.
An almost perfectly flat curie in the 460-630 nm range is a very nice piece of news. It guarantees a good colour rendering. The maximum transmission reaches almost 90% which seems to be a decent result but in order to assess properly the quality of coatings you have to look closer at the loss on one air-to-glass surface. The lens consists of 7 elements positioned in 5 groups so you deal here with ten air-to-glass surfaces. It means on one such surface you lose about 1.1%. It is a better result than you get with magnesium fluorite coatings (then the losses would be near 1.5%) but far from the achievements of the best producers.They can construct such anti-reflection coatings which are able to limit losses to just 0.2-0.3 % on one air-to-glass surface.
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Worse coatings and some flaws of inner construction backfire on work against bright light. Please, pay a close attention to the whole series of photos taken with the Nikon D7000 which show how the flares change with the sun getting further and further from the frame corner. What’s interesting the artifacts are not the biggest when the source of bright light is inside the frame but when that source is far away from it. Flares are easy to catch and, in some situations, they can spoil the whole frame completely.
