Pay in installments of $338.75 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
3.97mm f/2.8 82d HFOV 16MP (No Distortion)(Blue 450nm)The 3. 97mm is our newest 4K lens designed for the GoPro HERO and DJI Phantom X3 camera lines. With its 16MP sharp 8 glass non fisheye optics this lens captures the entire image sensor. This model of the 3. 97mm lens has our Blue 450nm filter cemented to the back of it. The blue channel of the image will contain the Blue light. After removing the stock lens the 3. 97mm threads in easily. No need to change to a different lens mount and all GoPro and
The 3.97mm is our newest 4K lens designed for the GoPro® HERO® and DJI Phantom/X3 camera lines. With its 16MP sharp 8 glass non-fisheye optics this lens captures the entire image sensor.
This model of the 3.97mm lens has our Blue 450nm filter cemented to the back of it. The blue channel of the image will contain the Blue light.
After removing the stock lens the 3.97mm threads in easily. No need to change to a different lens mount and all GoPro® and DJI accessories that mount around the lens surround are supported. No gap is present between the lens and the black GoPro® lens surround as the 3.97mm lens spans the entire cavity. On the DJI cameras a small gap will be created as the lens is not as large in diameter as the stock lens.
No fisheye/barrel distortion means objects are naturally straight and just as your eyes see the world. Mounting to a UAV? You'll be glad to know that's exactly where we mounted this lens the most as we were tweaking its production. See the videos below for examples mounted to the 3DR SOLO.
With the same f-stop as the stock lens on the GoPro® and DJI cameras the capture software will never know the lens has been changed. Light levels will be handled as normal and depth of field will be very similar.
With it being over 40 degrees narrower than the stock GoPro® lens and 8 degrees narrower than the DJI Inspire X3 and Phantom 4/3 cameras, this lens brings your subjects closer without being too zoomed in to introduce unwanted image jitter.
If you've thought of changing the lens on your camera but were never happy with the way the lenses on the market handled lens flare, you'll be glad to know that was a major concern of ours during development. We went through many iterations to reduce any "bad", concentrated flare spots and left only minimal cinematic flare. See the "Sunset at Scripps Pier" video below for an example.
| When you change the lens on the GoPro® HERO® cameras we recommend having us remove the stock lens profile software so the colors are natural (and not tinted pink around the edges). All example media shown has this lens profile removed from the camera. |
| Don't want to worry about sending you camera in to be modified? We sell new cameras with this lens installed HERE. |
| Model Number | GP39728BLUE |
| Focal Length | 3.97mm |
| 35mm Equivalent | 22.63mm |
| Fish-eye Distortion | NO |
| Black Vignetting | NO |
| Weight (Stock Lens = 5.5g) | 7.18g |
| Angle of View (V*H*D) | 65 x 82 x 92 degrees |
| Aperture (f Stop) | 2.8 |
| Back Focal Length (BFL) | 4.65mm |
| Dimensions (Diameter x Length) | 17.40 x 22.48mm |
| Native Camera Sensor Support | 1/2.3" |
| Native Megapixel Support | 16MP |
| Thread Material | Metal |
| Optics Material | Glass |
| Fits in GoPro Waterproof Case? | Yes (Pressure on Lens Will Cause it to Shift Focus, So Use Extended Backdoor) |
| Case Mod Needed? | No (But Puts Less Pressure on Lens) |
| Dust Ring Included? | Yes (DR_A + DR_B) |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 26 reviews
Sort
Product Reviews
★★★★★ 5
Colonialism not dead yet
This is a review of the 2004 Grove paperback edition of Frantz Fanon’s The Wretched of the Earth
The Wretched of the Earth is the most famous work of Algerian revolutionary Franz Fanon (1925-1961) finished and published shortly before his death (he died of leukemia). Fanon is known above all as a theorist of revolutionary violence and a champion of its therapeutic good for the oppressed. However, this book is not about armed struggle only; it covers many other topics: theory of class conflict in colonies, revolutionary process and subjects of social change in the Third World, the future of new independent states (former colonies), strategies of building Third World—First World relations in a right way, the relationship between the struggle for national culture and national liberation struggles, consequences of colonialism for both the colonizer and the colonized, etc. It’s a book of an angry man; the author's revolutionary pathos and standing with the oppressed (‘the wretched of the earth’) are noticeable.
Though Fanon wrote his book drawing on the experience of the Africa of the 1950s an acute reader can easily notice similarities and parallels with what’s going on in the underdeveloped countries all over the world.
The book can be of particular use for anthropologists, historians, philosophers, sociologists, as well as for those interested in cultural studies. I prefer Richard Philcox’s translation to the one published in 1963. Citizens of the global South can skip Jean-Paul Sartre’s preface; let the author speak for himself.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2019
★★★★★ 4
Influential and Insightful
Frantz Fanon's The Wretched of the Earth is an important document in the history of imperialism capturing the state of the Algerian revolution and the struggle for independence in the Third World at a crucial time. The year was 1961, and the book was published just before Fanon's premature death. Algeria was a year away from independence. The Congo had just achieved a travesty of independence. The Cuban revolution was still fresh.
Fanon was born in Martinique but was fully committed to the Algerian cause by the end of his life. His insights into the pitfalls threatening newly-independent nations have proved to be uncannily accurate. His voice is of his time and ahead of his time.
I would recommend this book to those wanting to learn more about the Algerian War and to those curious about the huge effect of this book on the leftists of the 1960s.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 28, 2013
★★★★★ 5
A SIXTIES CLASSIC WE HAVE MOVED ON FROM OR BACK OF/
Format: Paperback
i am 90 years old. i was a student in the 60s but i had already served in the military so i was already in my 30s. Which meant with a wife and twins i was more concerned with earning a living and finishing my doctorate than participating BUT it was a time when we swung one way as a nation and we were part of the post war swing of the world. The world had developed empires, WW1 began their downfall, ww2 pretty much finished the rest BUT it opened the door for new imperialism. On one hand colonialism melted away. The greatest empire ever, the British faded to legend and an island itself breaking up. American imperialism sprouted along with Soviet. And now China and Russia. One old model, Russia, one new model China. But the world i cyclical not progressive so China may become another imperial power. Fanon is an antidote as are other writers of the 60s so good to see new editions. Many rebels are now out of print. History is always ignored but it is always present.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 12, 2022
★★★★★ 5
An Important Text for All Those Engaged in The Struggle
Format: Paperback
The type of text that can bring about a breakthrough in consciousness, it places world affairs in perspective for the seeker of an authentic African consciousness.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2025
★★★★★ 5
Surprisingly fun and informative- a good series!
Format: Paperback
Bought this and the Paris book for an 11 year old girl before a trip to those cities. Although I felt like some of the quiz activities seemed a little too easy for her, the book provided an incredible array of information (current, historical, cultural, cuisine etc) presented in an entertaining way. She seemed to enjoy the book before and during the trip. She likes to read, and enjoyed getting a preview and information about of some of the places and things they would see. Would buy another in the future if they plan to travel to somewhere else covered in the series.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2023