topic Re: EF 300 1:4L IS in EF & RF Lenses https://community.usa.canon.com/t5/EF-RF-Lenses/EF-300-1-4L-IS-Lens-Hood-Operation/m-p/317671#M3937 <P>One of my very favorite lenses. The hood locks in place when it is extended if you turn it to the right, clockwise form the camera side but there isn't any lock when it is retracted.&nbsp; Just slide it forward.</P><P>&nbsp;</P><P>This lens works very well with the 1.4x tel-con. One of the very few I ever use one with. It gives you a 420mm, f5.6 with IS.</P> Fri, 28 Aug 2020 15:51:52 GMT ebiggs1 2020-08-28T15:51:52Z EF 300 1:4L IS Lens Hood Operation https://community.usa.canon.com/t5/EF-RF-Lenses/EF-300-1-4L-IS-Lens-Hood-Operation/m-p/317669#M3936 <P>The illustration shows this lens with a built in hood that extends. How do you get it to extend? I'm reluctant to use any force. Will a filter prevent the hood from extending?</P> Thu, 01 Dec 2022 20:29:29 GMT https://community.usa.canon.com/t5/EF-RF-Lenses/EF-300-1-4L-IS-Lens-Hood-Operation/m-p/317669#M3936 thirdherd 2022-12-01T20:29:29Z Re: EF 300 1:4L IS https://community.usa.canon.com/t5/EF-RF-Lenses/EF-300-1-4L-IS-Lens-Hood-Operation/m-p/317671#M3937 <P>One of my very favorite lenses. The hood locks in place when it is extended if you turn it to the right, clockwise form the camera side but there isn't any lock when it is retracted.&nbsp; Just slide it forward.</P><P>&nbsp;</P><P>This lens works very well with the 1.4x tel-con. One of the very few I ever use one with. It gives you a 420mm, f5.6 with IS.</P> Fri, 28 Aug 2020 15:51:52 GMT https://community.usa.canon.com/t5/EF-RF-Lenses/EF-300-1-4L-IS-Lens-Hood-Operation/m-p/317671#M3937 ebiggs1 2020-08-28T15:51:52Z