I have seen a used 70-200 f/4 L and an EF 1.4 extender Mk1 for sale at a reasonable cost. I want a decently competent medium telephoto zoom for general nature photography.
Can anyone give me an indication of this combination in terms of image quality. I know the 70-200 f/4 L is good, but is the extender also a worthwhile purchase for the extra reach to 280mm. I'm using a 5D classic, images of largish water birds, often against sky or water.






