Advice requested re Canon 1.4 extender

[Wandalynn]

I already had a Canon 1.4x mark I extender when I recently bought a Canon 100-400 L II lens. The mark I extender seems to work fine with it but should I spring for a mark III extender for this lens? I had been using the mark 1 extender with the similar-vintage Canon 300mm f4 L. Cameras are EOS R and 90D and I shoot mostly butterflies, bees, and smaller nature--not many birds. Thanks.

[wq9nsc]

I am not very good at identifying a lot of birds so it is a learning experience.  And then you get the little jokers who try to pretend to be something else.  This little subject was sitting just right this afternoon so that when the wind hit him, the head hair provided a cardinal head shape instead of the true rounded head 🙂

Rodger

[ebiggs1]

"... it looks more like a Brown Thrasher"

Yes, I do agree as the yellow eye gives it away.  The two birds are very similar. The thrasher less common.

[PLC3]

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@Waddizzle wrote:

Sounds like a good reason to simply remove the filter, and go without one.  If your images were still not to your liking, then the problem was the lens, not the filters.

I could not get sharp images with the 100-400mm II until I removed the UV filter, and set Image Priority to FOCUS.

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Newbie question:  What do you mean by "...set Image Priority to FOCUS."?

[Waddizzle]

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@PLC3 wrote:

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@Waddizzle wrote:

Sounds like a good reason to simply remove the filter, and go without one.  If your images were still not to your liking, then the problem was the lens, not the filters.

I could not get sharp images with the 100-400mm II until I removed the UV filter, and set Image Priority to FOCUS.

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Newbie question:  What do you mean by "...set Image Priority to FOCUS."?

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What camera are you using? I do not think Rebels make that setting available.

[ebiggs1]

"What do you mean by "...set Image Priority to FOCUS."?'

It is not necessary. Setting and using just the center focus point and 'One shot' for most of your photos will work best.

[PhotoGerry]

Took a snap of this fella today.  I'm not sure what he is.  Tail is a bit long for a finch, but I'm no expert. 

[ebiggs1]

Purple finch but I'm no expert either.