JINTU420-800mm f/8.3 Manual Mirrorless Camera Lens Compatible with Canon EF-M Mount M, M2, M3, M5, M6, M10, M100, M50, M200 (Black)

This is a powerful lens and works great with my X-A3. Super-straightforward to use. Great way to get into high-power telephoto shooting without breaking the bank. They included the proper adapter ring for my camera, a lens pen, microfiber cloth, and vinyl storage pouch. Pouch is kinda thin, so I put the lens in a thick sock before sliding it into the pouch. Also, the pouch drawstrings snag on the lens because they’re just threaded through alternating holes. I rethreaded them inside the rolled-over stitched channel around the opening. Much better. Also, it’s not real clear how to register for the 1-yr warranty. I filled out the card and emailed a photo of it to their customer service department. Looking forward to getting a lot of great nature shots with this lens.

結論的に、繊細なカメラのパーツが欠損した状態で送られてくる事態と、その後の対応の悪さ。欠損内容、レンズマウント（M42/RF）M42マウント側の中のリングが外れた状態で到着。（一枚目画像が送られてきた内容、二枚目が業者に確認をとった内容）内容物も分かりずらく、記載に誤植や内容不備あり。（海外製によくある形）解決策の提示を求めた際に、輸入業者が「当方にカメラ知識が無い」の一点張り、知識が無いのにもかかわらず売買をしていらっしゃるようです。RFの記載がありますが、こちらのレンズは『RFマウント対応しておりません』、業者様は分かってないようですが。（苦笑）内容を送ったにもかかわらず、最終的に返品対応しますのみの一言。今後全く取引したいと思わない。

product is barely above usable level，the mount is accurate and secure，resolution equivalent to what you can see at 150mm L lense but the color is bad with strong purple edge. I would rate it three stars if its 70dollar or 5star if It's 40dollar where the alibaba or taobao selling it at.

I had very low expectations on this lens. For any other comparable zoom level you have to spend about $1500 for the entry level. This lens is not going to win any photography contest. But as you can see by the image I've attached, you can get decent images at the full 800mm zoom. I haven't spent an hours worth of time with this yet. I'm totally surprised. I never expected to own a zoom at this level because "I" ain't at the level to spend crazy bucks on lenses. But as a hobbyist, heck yeah I'm keeping this lens.Without a halfway decent tripod, you can't get a shot. But my tripod is a UBeesize 5500 so it ain't fancy. And with this tripod, it ain't easy, but it's doable. Good luck!

Zoom into long distance scenery, follow instructions with the lens, right on spot.Don't expect professional results but excellent manual focusing and you will like it.