Method of fixing the focus of the camera+lens set.

Last update:2016/09/15 360 VR Shooting Kit, trouble shooting

It’s not too difficult to focus on with Entaniya Fisheye camera+lens set but you ought to know a few trick.

If adjusted accurately, the camera will be able to focus on perfectly. However, you still had better confirm the focus before shooting because it’s one the important points that affect quality of 360° VR footage.

How to adjust the focus with Entaniya Fisheye camera+lens set.

How to adjust the focus with Entaniya Fisheye camera+lens set.

Prepare the following equipment.

・Modified GoPro(Back-Bone Ribcage)
・Entaniya Fisheye lens
・CS mount adapter
・4 screws
・Allen key

Preparations

Preparations 1

clean the lens
Check whether the lens has stains or not, and if there are stains, please remove them first.

Remember to also check if there are stains in IR cutting filter in the bottom part of the lens.

If there are stains on the lens, it’s not able to judge where to focus on.

Preparations 2

シールテープ
Wind tape around the axis of the lens.

It’s enough if you wind it around once or half-way around.

If you end up winding around too much, it might get screwed in and can’t be taken off anymore.

Fix the tape firmly so that there is no spaces.

Preparations 3

001

Entaniya Fisheye lens does not need Back-Bone Ribcage IR cut filter and if the IR Cut filter is set the modified GoPro you can not fix the focus.
Could you please remove it before the lens mount on the GoPro.

Preparations 4

CS mount
Install CS mount adapter to the modified GoPro.

Please screw the CS mount in until it’s fixed in place.

※There’s no need to take off the part of Ribcage that is placed between CS mount and camera.

Preparations 5

When you are done adjusting the focus, please tighten the screws.

Tighten them in diagonal order.
Screw the lens into CS mount.

It’s OK when the distance between CS mount and lens is about 2-3mm.

Preparations 6

イモネジ

イモネジ
Screw setscrew into CS mount.

Don’t screw it to the end yet – it should be just a bit loose.

You should put screws into four places in diagonal line so that they cover around half of the diameter.

Adjusting focus

Adjusting focus
Connect the camera to monitor with HDMI cable.

Focus the lens and turn the lens clockwise.

In the above picture, it’s beginning to focus on.
In the above picture, it’s beginning to focus on.

When you are done adjusting the focus, please tighten the screws.

Tighten them in diagonal order.
The focusing starts from the outside edge so you should adjust and confirm the area of image circle.

After focus has been fixed correctly, screw setscrews in just a little.
After focus has been fixed correctly, screw setscrews in just a little.
You have to hold the lens while fixing because otherwise the focus might go out.

You have to hold the lens while fixing because otherwise the focus might go out.
After adjusting the focus, try taking a picture in picture mode and then check the shot you just took.

Using a picture, you can confirm the focus with 100% accuracy.

Check the image circle position

If the image circle position is not center, please adjust it.

160323_11

Method of adjusting image circle position of camera+lens set.

Tighten the screws

When you are done adjusting the focus, please tighten the screws.

Tighten them in diagonal order.
When you are done adjusting the focus, please tighten the screws.

Tighten them in diagonal order.

PAGE TOP ↑