#Kameken TOKINA FiRIN 20mm F2 MF E-mount Accessories: F&R caps, dedicated hood, original box There are no noticeable issues such as haze or fungus. It's in very good condition. Sample Data Common to All Photos Camera used: SONY α7 Aperture: f2-11 No image processing ☆For star photography, aperture wide open, shutter speed 15-20 seconds, ISO 6400-8000, taking about 20-30 shots. These were then composited using Sequator. Image processing was limited to the image editing features implemented on the iPhone. No portable equatorial mount was used; the camera was fixed on a tripod. I hope this will be helpful for those who want to get started easily. Using a portable equatorial mount will likely produce even better images. This is a wide-angle prime lens from Tokina, released about 8 years ago. When taking sample photos, I rarely research the lens specifications to avoid preconceived notions, but I was surprised when I looked at the images I took. It had extremely low chromatic aberration and resolved well from wide open, so after testing it, I found out that it uses 2 SLD glass elements to suppress chromatic aberration, as well as 2 aspherical lenses. No wonder the images are good! I was impressed. When I check the limits of optical performance, I often photograph stars as subjects, and even at wide open aperture, there was little vignetting, and the image quality showed no aberration from the center of the screen to about 85-90%. You can capture the dense Milky Way as shown in the sample photos during this time of year, so I hope you will use this lens. Also, the ability to choose between clicked and clickless aperture is a plus. This mechanism is especially convenient for those who primarily shoot videos, as the slight vibration from the clicks can be stressful. If you purchase multiple items, I will offer a discount on the shipping cost by combining them, so please contact me before purchasing. Regarding the product, I also sell on auctions, other flea market apps, and in person, so the item may become out of stock depending on the timing. The nearest post office is closed on weekends and holidays, so if you win the bid during that time, the item will be shipped after the holiday. Thank you.