The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

   fisheye lens is a very special kind of lens product. Using fisheye lens to shoot can create a very visually impactful picture effect, bring a very wide viewing angle and exaggerated barrel distortion effect. Therefore, although it is not very practical, it is very interesting and it is still favored by many photography enthusiasts. The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens. From the name we can see the uniqueness of this lens, it can shoot an ultra-wide angle of view of 210 degrees.

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

Lao Frog CF 4mm F2.8 210 degree fisheye lens

What is the concept of   210 degree? We all know that the full-flat angle of view is 180 degrees, so 210 degrees can capture the scene behind the lens. Let’s take a look at how this lens performs. The one we received was an E-mount lens, so the Sony mirrorless camera A6300 partnered with it.

   It should be noted that 210 degrees can already be used to capture the scene behind the lens, so we must be very careful when shooting, because accidentally the hands, feet or head may enter the lens. In addition, if the camera handle is too wide, it will also affect the shooting.

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

   This lens is not yet on the market, but it is currently On the market, the price of the same model and different bayonet lens is 1280 yuan, so I expect the price of this lens to also be 1280 yuan. This kind of lens provides more fun for shooting and can bring users extremely visually impactful photos. It is not a filming and working lens in the traditional sense.

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

Lao Frog CF 4mm F2.8 210 degree fisheye lens

   The size of this lens is very small and can be easily grasped with one hand. The all-metal lens body is very heavy, and the workmanship and texture are excellent. . This lens is manual focus, and the lens aperture ring adjustment is also manual. The maximum aperture of this lens is F2.8, and there is a focus scale on the lens to quickly lock the focus distance.

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

Aperture range F2.8-16, with focus scale

   The closest focusing distance of the lens is 0.1m. In actual shooting, it is actually infinite beyond 1m. Therefore, although it is a manual focus lens, the focus is very Easy.

  Because it is a fisheye lens, the bulb design makes it easy for the foreground group to touch the hand during use. However, the anti-fouling design of this lens is still very good, and it is not easy to get fingerprints and dust in actual use.

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

The state with the lens cap installed

   The old frog CF 4mm F2.8 210 degree lens cap is a barrel-shaped design, the metal material feels delicate, and the inner flocking design brings excellent damping, which can be very Cover the lens firmly to protect the lens.

   Let’s take a look at the resolution performance of this lens. Of course, because it is a special fisheye lens, the resolution standard is different from that of a normal lens, and the standard of a regular lens cannot be used. Claim. We still have to look at the actual imaging effect.

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

   From the actual performance, this lens is The performance at the center and edge resolutions is still good. The picture quality is good at the maximum aperture of F2.8, and the best picture quality at the two apertures of F5.6 and F8. The picture quality has declined after f/11.

   Generally, we avoid backlighting when shooting. However, because of the special nature of fisheye lenses, backlighting is often inevitable. Glare and ghosting are the biggest problems when shooting with backlighting. Let’s take a look at the situation of glare and ghosting when shooting with backlighting.

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

F2.8 backlight shooting

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

  F16 backlit shooting

   In actual shooting, there is no obvious glare and ghosting at the maximum aperture of F2.8, and the backlit performance is excellent. The starburst effect appears when shooting with F16 aperture, which provides a good effect for the photo.

  In regular lens evaluation, we will also test the performance of lens vignetting, distortion, blurring, etc., but for a fisheye lens, these are not necessary for testing. Let’s take a look at what kind of visual effect this lens will bring.

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

Stand at the intersection and collect the surrounding buildings in the picture

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

  Blue Planet

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

  Indoor shooting can take the whole room

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

  Better highlight the main body

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

  All the close-range subjects are stored and the distant-view environment is also clearly explained

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

   The more elements in the screen, the more fun

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

   Still life shooting also has different effects

The product we introduce to you today is an old frog CF 4mm F2.8 210 degree fisheye lens

  Taking people It can be closer.

  Summary:

   In fact, this fisheye lens is more interesting than practical, but it shows very good optical qualities, which is beyond the author. Unexpected. The lens is very good in color performance, resolution and anti-glare ability. In all fairness, buying a 210 degree fisheye lens for 1280 yuan is still very good value. The compact size is also very convenient to carry. Take it with you when you go out to shoot, and shoot some scenery and architectural subjects, you can get very visually expressive photos, and the super wide angle of view can also shoot scenery that others can’t take.

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