# Test camera explore hd and gopro hero 11 **URL:** \ **Category:** Adventure Log\ **Created:** [November 18, 2023, 7:17pm UTC](https://discuss.bluerobotics.com/t/test-camera-explore-hd-and-gopro-hero-11/15523 "2023-11-18T19:17:12Z")\ **Posts on this page:** 1\ **Showing post:** 8
**Author:** ![Marco](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Marco](https://discuss.bluerobotics.com/u/Marco)\ **Post date:** [December 1, 2023, 2:16pm UTC](https://discuss.bluerobotics.com/t/test-camera-explore-hd-and-gopro-hero-11/15523/8 "2023-12-01T14:16:48Z")
At the beginning I also didn’t understand why I had undefined images, I purchased various compatible cameras and many lenses up to 180° wide angle, but always blurry images. So I started to change the focus of the lens by rotating the lens counterclockwise, and depending on the type of lens I mount, I have to give more or less degrees counterclockwise, from 30° up to 90°. In the end I mounted the explorehd camera which has an excellent white balance, with a 110° lens which is approximately the same aperture as my GOPRO11 so that I film with the GOPRO11 what I see with the explorehd of the BlueROV2. Also look at this post of mine from 2022 > [@Camera focus with dome](https://discuss.bluerobotics.com/t/camera-focus-with-dome/11592): > > Hi guys, this morning I went to Lake Iseo to do some tests with the bluerov2, light and video tests, and as usual I came back a little disappointed by the quality of the video. It always seems out of focus, I stopped to look at a thin object of about 10cm and I couldn’t figure out what it was. I have had the rov for 6 months, I tried to change the original hd camera with a sony imx290 hd, I tried to replace 4 lenses, from the original one up to the 180 ° fisheye. Nothing always out of focus, … --- _[View the full topic](https://discuss.bluerobotics.com/t/test-camera-explore-hd-and-gopro-hero-11/15523)._