# Ultra Wide Angle Lens + april tag detector

**URL:** <https://forums.openmv.io/t/ultra-wide-angle-lens-april-tag-detector/1136>\
**Category:** OpenMV Boards\
**Created:** [February 11, 2019, 9:44pm UTC](https://forums.openmv.io/t/ultra-wide-angle-lens-april-tag-detector/1136 "2019-02-11T21:44:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![marknabil](https://avatars.discourse-cdn.com/v4/letter/m/90ced4/32.png) [@marknabil](https://forums.openmv.io/u/marknabil)\
**Post date:** [February 11, 2019, 9:44pm UTC](https://forums.openmv.io/t/ultra-wide-angle-lens-april-tag-detector/1136/1 "2019-02-11T21:44:32Z")

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Hey all,  
Did anyone try before the april tag detection of openMV in the presence of fisheye lens ?  
Did anyone succeed to connect openMV in the ROS eco-system? Arduino boards are trivial to be connected through ROS-Serial is it the same for openMV ?  
Thanks for replying and sorry if they are naive Questions.  
Regards,  
Mark

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**Author:** ![kwagyeman](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.openmv.io/kwagyeman/32/4_2.png) [@kwagyeman](https://forums.openmv.io/u/kwagyeman)\
**Post date:** [February 12, 2019, 5:53am UTC](https://forums.openmv.io/t/ultra-wide-angle-lens-april-tag-detector/1136/2 "2019-02-12T05:53:27Z")

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Hi,

Yes, the ultra wide angle lens works with April Tags.

As for ROS, here’s an example: [GitHub - fabianschilling/openmv\_cam: OpenMV Cam ROS package](https://github.com/fabianschilling/openmv_cam)