# Scroll wheel zoom factor

**URL:** <https://discourse.mcneel.com/t/scroll-wheel-zoom-factor/96088>\
**Category:** Rhino for Windows\
**Created:** [February 7, 2020, 2:57pm UTC](https://discourse.mcneel.com/t/scroll-wheel-zoom-factor/96088 "2020-02-07T14:57:28Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![intuitionusa](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/intuitionusa/32/485885_2.png) [@intuitionusa](https://discourse.mcneel.com/u/intuitionusa)\
**Post date:** [February 7, 2020, 2:57pm UTC](https://discourse.mcneel.com/t/scroll-wheel-zoom-factor/96088/1 "2020-02-07T14:57:28Z")

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Is there a way to adjust how fast you can zoom in and out with the mouse scroll wheel. A zoom factor setting. Mine is way to slow as it takes 5 scrolls to get to where I need. 🙂

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**Author:** ![Helvetosaur](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/helvetosaur/32/635974_2.png) [@Helvetosaur](https://discourse.mcneel.com/u/Helvetosaur)\
**Post date:** [February 7, 2020, 3:06pm UTC](https://discourse.mcneel.com/t/scroll-wheel-zoom-factor/96088/2 "2020-02-07T15:06:18Z")

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It’s in Options\>View… Set the Zoom Scale factor smaller than the 0.9 default.

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/7/b/7b438225aa6617d93d522516cbac9626ae8dda53.png)

There might also be something in your mouse driver, depending, and that sets the number of “lines” per scroll wheel “click”

![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/c/d/cd52cca0da9fecab61f8e297b305cc87ac1d1cb3.png)

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**Author:** ![intuitionusa](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/intuitionusa/32/485885_2.png) [@intuitionusa](https://discourse.mcneel.com/u/intuitionusa)\
**Post date:** [February 7, 2020, 3:09pm UTC](https://discourse.mcneel.com/t/scroll-wheel-zoom-factor/96088/3 "2020-02-07T15:09:56Z")

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Thanks that works. Maybe that should be under Mouse settings.

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**Author:** ![pascal](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/pascal/32/479395_2.png) [@pascal](https://discourse.mcneel.com/u/pascal)\
**Post date:** [February 7, 2020, 4:13pm UTC](https://discourse.mcneel.com/t/scroll-wheel-zoom-factor/96088/4 "2020-02-07T16:13:27Z")

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> [@intuitionusa](#):
>
> Maybe that should be under Mouse settings.

Well, it’s not the scroll wheel zoom factor, it’s the zoom factor - PageUp/PageDown for example or Zoom In/Out.

-Pascal

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**Author:** ![LeGaulois](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/legaulois/32/476047_2.png) [@LeGaulois](https://discourse.mcneel.com/u/LeGaulois)\
**Post date:** [June 19, 2026, 3:33pm UTC](https://discourse.mcneel.com/t/scroll-wheel-zoom-factor/96088/5 "2026-06-19T15:33:13Z")

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Hi there,

is their a macro that could define the two different scale factors?

thanks

CC

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**Author:** ![Helvetosaur](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/helvetosaur/32/635974_2.png) [@Helvetosaur](https://discourse.mcneel.com/u/Helvetosaur)\
**Post date:** [June 19, 2026, 5:02pm UTC](https://discourse.mcneel.com/t/scroll-wheel-zoom-factor/96088/6 "2026-06-19T17:02:10Z")

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> [@LeGaulois](#):
>
> is their a macro that could define the two different scale factors?

Sure. You could make a button LMB/RMB with two different values for `ZoomScale` for example.

`! _-Options _View _ZoomScale=0.9 _EnterEnd`

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**Author:** ![LeGaulois](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/legaulois/32/476047_2.png) [@LeGaulois](https://discourse.mcneel.com/u/LeGaulois)\
**Post date:** [June 19, 2026, 5:37pm UTC](https://discourse.mcneel.com/t/scroll-wheel-zoom-factor/96088/7 "2026-06-19T17:37:02Z")

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Perfect. thank you @Helvetosaur !