About that, what is sleep I already wrote earlier. Now let's move on to more complex matters - optical sleep.
How is it different from a conventional tube?
Lenses can be worn here. That's it, roughly speaking. And if the smart guy:
This type of cone reflector is equipped with an optical attachment with the ability to install interchangeable optics.
I am reviewing on optical snooter Nicefoto SN-29, but in general there are a lot of them from various manufacturers. This is one of the inexpensive attachments of this type. The cost is possible see here.
By the way, the kit comes with a lens Yongnuo 50mm f1.8.
You can also wear any other Canon EF mount lenses there:
What does he give?
There are a huge mass of use cases for optical sleep. As a rule, these are creative shots with an original effect in the background.
- The presence of optics allows you to form a clear picture against the background. It can be just a smooth circle of light with soft or hard edges (whichever you want).
- You can make various patterns of light on the background. The device comes with a small set of Gobo masks, that is, metal plates with cutouts that will form the patterns projected onto the background.
- With this attachment you can turn your permanent light into a projector. There are several slides included, but again you can buy or print any other images on film and project them wherever you want. But there are limitations in this matter.
The easiest way to get creative is to buy Soviet transparencies. They work great with this thing. I went further and ordered my slides from the nearest printing house.
Restrictions on the use of optical snails
Just like a normal sleep, the optical sleep gets very hot from constant light. For pulsed flashes, this is not so noticeable. But if you want to use this thing as a projector, there will be some limitations. So, for example, my Godox SL60 device at 100% power overheats in 15 minutes. You can work at 50-60% power for a long time.
You can increase the intensity of the luminous flux through the use of faster optics. For example, I dressed Canon EF 50mm f1.2L instead of the Yongnuo 50mm f1.8 and received a noticeable increase in brightness at the same power. And here, however, there is a nuance - this whole design is bulky and heavy.
Outwardly it looks like some kind of blaster. It shines well, but there are concerns about the stability of this device. The design strongly outweighs towards the lens. Plus, I already want a light with an iron mount instead of a plastic one. Heavy (and expensive) lenses are not very suitable for use with Nicefoto SN-29. Dumb somehow. Lightweight and plastic Yongnuo 50 f1.8 Is a very rational solution. By the way, about optics, only lenses with mechanical focusing control work here.
Overall, I am very pleased with this purchase. Buying such a thing is much better and more interesting than upgrading another lens. Going from an f1.8 lens to an f1.2 lens won't give you as much of a creative effect at all as this thing. Of course, here we are talking about studio shooting, which is more specific. But such a dream can be worn on a flashand then play with this effect anywhere. In general, I am delighted.
Video review with examples of using Nicefoto SN-29: