How to choose Sony A580 suspension lens?

I have an a580. Tell me about my experience, lessons and feelings.

I mainly use it to take travel photos, mainly to make the scenery and people I see less noisy than the cards.

I originally bought a 580 body 18-55 pullover. Later, I quickly bought a 70-300 DG-macro horse head. In this way, I traveled several times.

I found that 18-55 was used the most when traveling. 18-35 in it is used most. When taking photos of people who have been here while traveling, it takes more than 35-55. 100-300 is rarely used, mainly for sneak shots (sweeping the street, shooting birds, shooting the moon while traveling), and the macro function of 70-300DG in 200-300 paragraphs is used for macro shooting of flowers.

It's too uncomfortable to focus on the 300 end of 70-300 when shooting birds, and it's always inaccurate. Because there is no ultrasonic motor, the motor of the fuselage is slow. In the case of insufficient light, this head is slightly fleshy and feels not sharp.

Sometimes it's inconvenient to change your head. Once in Jiuzhaigou, I changed my head and dropped the lens under the seam of the plank road. It took me a long time to take it out So, I decided to buy another big zoom head. Watch Longteng's 18-270PZD B008. I tried it several times and it felt good. I also found some samples on the Internet, and none of them were scaled according to the original size. I found the imaging ok.

At this time 16-80ZA of Zeiss jumped into my choice circle. Some friends recommended this, but I finally bought 16-80ZA. Gave up 18-270PZD.

I compared 16-80 with the original 18-55. It is found that 18-55 does have more serious dispersion than 16-80. I used to shoot flowers that had been sprayed with water. Water droplets with small dispersion and all within the focal length should be very sharp. If the dispersion is serious, a purple-blue tail along the radial direction will be found. I compared 16-80 and 18-55 under the same scene, the same lighting conditions and the same aperture shutter parameters, and found that the chromatic dispersion tail of 16-80 was slightly smaller than 18-55. But still not satisfied.

It is believed that 18-270 also has dispersion, and it is more serious.

For people like me who are a little interested in photography, the pursuit is a little clearer picture quality, but it is not particularly strict. What we want is convenient and relatively good image quality.

In this way, I can draw a conclusion:

1) It is best to buy a fuselage+18-270pzd to meet the requirements of travel and hand training.

2) Have a certain foundation (be familiar with machine operation and know some basic essentials of taking good photos), and with the pursuit of higher image quality, you can buy some fixed-focus lenses, such as Zeiss 85F 1.4ZA (similar to Sima's 85F 1.4ZA) and135f1. Buy again 16-35ZA to shoot "works" of landscape and humanities. In addition, it should be noted that these fixed-focus lenses should be used on Quan Huafu. After all, they are expensive. If the fuselage is upgraded to Quan Huafu in the future, these fixed-focus lenses can still be used.

In this case, it should be enough to have a 18-270 hung up and travel around the world, and prepare several fixed focuses to shoot "works".

I believe most of the time, it will be 18-270. How soon can you get so many opportunities to shoot models?

If you really pursue image quality, do you only use APS format camera instead of buying 645D medium format? At least buy a Quan Huafu like invincible rabbit and a900.