Cooke 2x Extender for 300mm S4/i Lens

SKU: COE2X MFR: CKE 2X
Earn VIP Reward Points

Key Features

  • Double your reach! This Cooke 2x Extender maximizes your 300mm S4/i lens.
  • Maintain superb image quality with this teleconverter, designed for Cooke lenses.
  • Capture stunning telephoto shots; get closer to the action with 2x magnification.
  • Built for durability, this lens mount adapter ensures years of reliable use.
  • Enjoy seamless compatibility; this Cooke extender is made for your 300mm lens.
  • Get sharper, clearer images; this extender enhances your lens's focal length.
See More Product Details
Special Order?Estimated to Ship: 08/16/2025
Free Shipping

See Options

1

Protect your gear with Adorama Protect.* Learn more

2 Year

$159.99

3 Year

$215.99

4 Year

$269.99

Available to U.S. customers only.

Need help? Ask our experts.

Overview
Compare
Compatibility
Learn
Specs
Protection
Q&A

Questions & Answers

Reviews about this item

Review Summary

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

image-protection

TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Failure Protection

Failure Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500

Cooke Extender Specifications

  • Compatibility

    300mm S4/i Lens

Related Articles & Videos

Adorama: Your Sports Photography Authority

Adorama: Your Sports Photography Authority

Whether you're shooting your kid's PeeWee league games or are trying to break into the big time (not an easy task!...

Read more
Here's a Quick Way to Whisk Away Color Fringing in Your Digital Images

Here's a Quick Way to Whisk Away Color Fringing in Your Digital Images

You've tried soaking them out and scrubbing them out. But you still get color fringing on the collar...and on other high-contrast transition areas of your digital photos. Here's how to whisk them away..

Read more
PhotoZAP 75: High ISO Spotted

PhotoZAP 75: High ISO Spotted

"While capturing a beastie in the wild like this is a true challenge and consists of infinite patience and waiting... you didn't set your camera properly in advance." ~Mason Resnick

Read more
Handling Noise in the Digital Darkroom

Handling Noise in the Digital Darkroom

Noise always increases with ISO and there is no magic bullet for it, but it is controllable with a little care.

Read more

Designed For Use With:

  • Cooke

Need Help?

For any questions about compatibility with this product, call us at 800-223-2500 or you can email us any time.

About Cooke Extender

For professional photographers and videographers seeking to enhance their lens capabilities, the Cooke 2x Extender for 300mm S4/i Lens is an exceptional tool. This high-quality extender effectively doubles the focal length of your 300mm S4/i lens, providing you with greater versatility and precision in capturing your desired shots.

Designed with meticulous attention to detail, the Cooke 2x Extender ensures superior optical performance. It maintains the integrity of your images by minimizing distortion and aberrations, even when used at maximum magnification. This makes it an ideal accessory for capturing detailed, high-resolution images in a variety of shooting scenarios.

Constructed with robust materials, this 2x extender is designed to withstand the rigors of professional use. It seamlessly integrates with your 300mm S4/i lens, ensuring a secure and stable connection for optimal performance.

Whether you're shooting wildlife, sports, or other distant subjects, the Cooke 2x Extender for 300mm S4/i Lens is a valuable addition to your photography equipment. Enhance your lens capabilities and capture stunning, high-quality images with this professional-grade extender.

Cooke Extender Features

  • Compatible for 300mm S4/i Lens

Warranty Information

This product has a limited warranty of 12 months.

Key Features

  • Double your reach! This Cooke 2x Extender maximizes your 300mm S4/i lens.
  • Maintain superb image quality with this teleconverter, designed for Cooke lenses.
  • Capture stunning telephoto shots; get closer to the action with 2x magnification.
  • Built for durability, this lens mount adapter ensures years of reliable use.
  • Enjoy seamless compatibility; this Cooke extender is made for your 300mm lens.
  • Get sharper, clearer images; this extender enhances your lens's focal length.

What's in the box:

  • Cooke 2x Extender
  • Cooke 1 Year Limited Warranty