Only for today (8/12/2020) Adorama has a pretty good deal on the Datacolor Spyder-Lens-Cal Autofocus Calibration Aid.

Get the Datacolor Spyder-Lens-Cal Autofocus Calibration Aid on sale at $30.99. Compare at $69.99. Free shipping. This is a professional solution to finetune the autofocus on you lens. If you want to save money, here is a inexpensive solution for lens calibration (and it works fine).

Datacolor Spyder-Lens-Cal key features:

• Accurate and repeatable calibration of your lenses and recent DSLR bodies
• Worthwhile investment to ensure your camera is focusing your lenses as precisely as possible
• Fast, easy solution for your interchangeable lenses and recent DSLR bodies provides razor-sharp auto-focusing, using modern DSLR autofocus micro-adjustment technology
• Compact, lightweight and durable, with integrated level and tripod mount, making this the most convenient way to adjust your own camera gear
• Save time and hassle of sending your equipment in for service. Now you can check or calibrate your own lenses
• Accurate and repeatable calibration of your lenses and recent DSLR bodies
• Worthwhile investment to ensure your camera is focusing your lenses as precisely as possible
• Type: Color Calibration, Focus Calibration

More hand-picked deals are listed here.

Today’s Gold Box and one day only deals at Amazon US, Amazon DE, Amazon UK, B&H Photo, eBay, Adorama.

Refurbished lenses and DSLRs at Canon Store (best deals might be found here)

Save $10 on Luminar 4 and/or Aurora HDR 2019 using our code “WATCH” at checkout.