# Lepton 3,5 half gained

**URL:** https://forums.openmv.io/t/lepton-3-5-half-gained/6940
**Category:** OpenMV Boards
**Created:** [March 20, 2022, 7:01pm UTC](https://forums.openmv.io/t/lepton-3-5-half-gained/6940 "2022-03-20T19:01:28Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![Technoturk](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.openmv.io/technoturk/32/2056_2.png) [@Technoturk](https://forums.openmv.io/u/Technoturk)
#### Post date: [March 20, 2022, 7:01pm UTC](https://forums.openmv.io/t/lepton-3-5-half-gained/6940/1 "2022-03-20T19:01:28Z")

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Im notice half of the image of the lepton 3,5 is gained,

is this normal ? or do i miss something on the code?

Its still there with the default main.py for purethermal (only on low temperatures, it disapier when it sees warm temperatures)

 ![20220320_193828](https://canada1.discourse-cdn.com/flex029/uploads/openmv1/original/2X/d/d9bb9c7d4b85c24294b75465d7cf64dc9435345a.jpeg)  
 ![20220320_194202](https://canada1.discourse-cdn.com/flex029/uploads/openmv1/original/2X/e/e3c5a11e08c151596c4e31c795d3aa63fd8bad85.jpeg)  
 ![20220320_193817](https://canada1.discourse-cdn.com/flex029/uploads/openmv1/original/2X/f/f09436d6f7cfc347f77990b50745199900a999d8.jpeg)

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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: [March 21, 2022, 1:19am UTC](https://forums.openmv.io/t/lepton-3-5-half-gained/6940/2 "2022-03-21T01:19:20Z")

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This is an issue with the lepton itself and not our code.

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### Author: ![Technoturk](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.openmv.io/technoturk/32/2056_2.png) [@Technoturk](https://forums.openmv.io/u/Technoturk)
#### Post date: [March 21, 2022, 5:37pm UTC](https://forums.openmv.io/t/lepton-3-5-half-gained/6940/3 "2022-03-21T17:37:42Z")

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I received the lepton 3.5 with the purethermal board 2 weeks ago.  
So i understand i received a defective lepton 3.5

[Edit]  
This is what im seen when i first boot up the purethermal before first FFC.

 ![20220320_203821](https://canada1.discourse-cdn.com/flex029/uploads/openmv1/original/2X/0/09566149fb06ec482adff5e67e6f6fc05e0b1f8e.jpeg)

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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: [March 21, 2022, 7:25pm UTC](https://forums.openmv.io/t/lepton-3-5-half-gained/6940/4 "2022-03-21T19:25:09Z")

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Yeah, like half the image is bad.

Did you order the cheap one that’s known to be a factory reject they are selling?

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### Author: ![GroupGetsGriffin](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.openmv.io/groupgetsgriffin/32/2018_2.png) [@GroupGetsGriffin](https://forums.openmv.io/u/GroupGetsGriffin)
#### Post date: [March 21, 2022, 8:02pm UTC](https://forums.openmv.io/t/lepton-3-5-half-gained/6940/5 "2022-03-21T20:02:28Z")

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It’s a 3.5. Even for an FS, I would expect better. This one must have slipped past FLIR QC. We’ll take care of it.

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### Author: ![Technoturk](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.openmv.io/technoturk/32/2056_2.png) [@Technoturk](https://forums.openmv.io/u/Technoturk)
#### Post date: [April 3, 2022, 1:03pm UTC](https://forums.openmv.io/t/lepton-3-5-half-gained/6940/6 "2022-04-03T13:03:29Z")

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I will thank to the support of GroupGets.  
They sended me a new lepton, all ok now.

I cant be happer, the heavy gain lines are gone 😀👍.

 ![20220403_143152](https://canada1.discourse-cdn.com/flex029/uploads/openmv1/original/2X/1/1043d29869c8f4c43e86dc1b30cd9a148730a808.jpeg)

(Topic can be closed as solved.)