Evaluation of Thin and Cheap Macro Sony 30 F2.8 Lens

IT 168 Evaluation Center On the road of photography from beginners to enthusiasts, you always have to try all kinds of special shooting themes. We often hear a saying? He just likes to shoot flowers and plants? . Indeed, many photographers are in these seemingly dull? Flowers and plants I suddenly found my interest. Then, the macro lens is the best tool to make these seemingly dull things not dull. Why? Because it can blur most of the picture, the picture looks very special.

Sony DT 30mm F2.8 SAM Macro

Among all Sony macro lenses, DT 30mm F2.8 SAM macro is the cheapest one. At present, the official quotation is only 2200 yuan, but it is only applicable to the SLR model with APS-C format, which means that it cannot be used normally on the A900 Quan Huafu model. If you are an entry-level Sony SLR user, you can consider this cheap macro lens, which is light and cheap, and can also reach the picture magnification of 1: 1. The closest focusing distance of DT 30mm F2.8 SAM macro is 0. 129m, that is to say, to get the magnification of 1: 1, the front end of the lens needs to be very close to the subject. At this time, the front end of the lens is only about 3 cm.

Sony DT 30mm F2.8 SAM Macro

When Sony DT 30mm F2.8 SAM macro is focused recently, the front end of the lens is prominent.

As an entry-level lens, DT 30mm F2.8 SAM macro is not as precise and solid as Zeiss lens or Sony's G lens. Even the manual focus ring at the front end will be a little shaky. When you hold the DT 30mm F2.8 SAM macro in your hand, you will feel that it looks as simple as a plastic toy, with a small lens and a light body (about 150g, the weight of two eggs).

Sony DT 30mm F2.8 SAM macro bayonet, made of plastic.

Although the SAM logo represents that this lens uses a smooth autofocus motor newly developed by Sony, in fact, the autofocus state of DT 30mm F2.8 SAM macro is not so popular. Simply put, is it? Loud noise? Of course, this is also a common problem of most low-end macro lenses. Moreover, for the macro lens itself, the lens assembly stroke during focusing is relatively long, and manual focusing is more reliable than automatic focusing. Unless it is a specially designed macro lens? Of course it will be more expensive.

Sony DT 30mm F2.8 SAM macro mounted on A500 fuselage.

Product advantages:

1. The imaging Jiao Wai effect is soft and natural.

2. Good imaging quality under large aperture.

Product disadvantages:

1. The autofocus performance and control experience are slightly poor.

Imaging performance test

As a macro lens, we are of course more concerned about the imaging performance of DT 30mm F2.8 SAM macro. In fact, the macro structure of DT 30mm F2.8 SAM is very simple, with 5 groups of 6 lenses and 7 aperture blades. In fact, when shooting at full aperture, DT 30mm F2.8 SAM macro can obtain a beautiful shallow depth of field effect, and the Jiao Wai image is very soft, and the red-green color difference at the focus is also very small.

Effect of DT 30mm F2.8 SAM macro full aperture shooting

DT 30mm F2.8 SAM macro can also capture the conventional effect of small aperture.

We measured the sharpness and dispersion of DT 30mm F2.8 SAM macro lens at different apertures with A500. In fact, even if the aperture is fully open, the center sharpness of DT 30mm F2.8 SAM macro remains very good, which is very valuable for macro lens. It was not until f/ 1 1 that the overall picture clarity decreased significantly. At f/3.5, the macro of DT 30mm F2.8 SAM can reach the extreme sharpness, and that of MTF50 can reach about1900lw/pH. However, the edge definition of the picture is obviously reduced, and some visible dispersion lines appear.

The central resolution of DT 30mm F2.8 SAM macro at f/3.5 aperture.

Image edge dispersion of DT 30mm F2.8 SAM macro at f/3.5 aperture

sample

Generally speaking, DT 30mm F2.8 SAM macro with Sony A500 can satisfy beginners' attempt and practice of macro photography, even with A230, it will have excellent portability. Although the operation feel is not so satisfactory, macro shooting is an activity that requires great patience, and DT 30mm F2.8 SAM macro can also take typical macro photos.

sample

Generally speaking, DT 30mm F2.8 SAM macro with Sony A500 can satisfy beginners' attempt and practice of macro photography, even with A230, it will have excellent portability. Although the operation feel is not so satisfactory, macro shooting is an activity that requires great patience, and DT 30mm F2.8 SAM macro can also take typical macro photos.

IT 168 evaluation center's point of view: from the perspective of Jiao Wai effect and picture clarity, the image quality performance of DT 30mm F2.8 SAM macro should be said to have surpassed the impression of super-entry. If you want to try to shoot some flowers or small objects, then DT 30mm F2.8 SAM macro is actually a good choice, because it is cheap and portable? It's good to have enough.