Granted, you need to have the right camera to go with this lens. I use this SEL70300G with a Sony a7II and the photos are better than I could imagine. The Optical SteadyShot (OSS) feature plus the body stabilization in the a7II make for incredibly crisp, detailed shots without the need for a tripod (even when maxed at 300mm). Need to lower your shutter speed for more light? Want to shoot in 100 ISO (or less)? This camera and lens combo can get the job done. I have had several of my photos accepted by stock photography sites which are known for being strict on image detail, exposure, and overall quality. I had been waiting to get the right equipment before becoming a stock contributor and this lens does not disappoint. There's so much more positives to mention including the macro capabilities of the lens. I have great shots of dragonflies where it's just scary how crisp and detailed the eyes, wings, and even their little insect hairs are in the shots. Don't be fooled, this telephoto lens can do up-close shots as well. I've been able to keep it on longer without swapping because of the versatility. The Sony Nano AR coating also works very well. My shots have not suffered any lens flare or chromatic aberration (CA). The lens appears to stack up to the hype on Sony's website.
Now, I'll stop sounding so biased and list some cons:
• Price. I managed to get a coupon that I applied toward this lens. I would not play full retail.
• The manual on-lens switches on the side of the lens slide very easily. You can unintentionally slide out of steadyshot or manual focus and not notice. This normally happens when putting the camera in the bag or taking it out. Not a big deal, just check the switches before shoots and occasionally as you shoot.
• Size & Weight. I'm coming for a Sony a5100 with an SEL55210 so this SEL70300G is HUGE. The shots are amazing so it's worth it.
• It takes a while for the zoom control to loosen up. It will be stiff at first, but will get much smoother after continued use.
• Auto focus can be slow at times. I primarily use manual focus, but there are moments when AF is needed, especially with wildlife that may move unpredictably.
All in all, it's a great lens and I'm more than satisfied with the purchase. It's my main shooter and I thoroughly enjoy going to my favorite nature spots to take beautiful photos. If you need reach, versatility, great detail, and quality, this is a great pick.