Would you bother with the 12mm F2, 17mm f1.8 or 45mm f1.8 if you had the 12-40 f2.8 Pro?

EyeMac wrote:

Sad but true, buying a new lens tends to get me motivated to go out and take more photographs!

True with everyone

I have the 12-40 f2.8 pro that stays on my camera pretty much full time. I have the 9-18 that I use occasionally. I also have the cheap Panasonic 25 f1.7 that I bought for $99, I'm not too fussed about this one so it might go but there are loads on the online markets so not worth much.

But you have a 1.7 prime you want to sell for unknown reasons? Why not give the lens a go before buying three others?

I have the cheap 40-150 that gets occasional use.

And you want to buy the pro 2.8 version? I have the Panasonic 45-150 for a present and I only used it for light travel to abroad.

My last lens is the 75-300 which is rarely used and seems like a bit of a white elephant for me.

I own the 100-300 and it's flaws are more noticable on modern MFT cameras.

I am tempted to sell the 75-300 to get either the 12, 17 or 45 but not convinced I will use it!

Why do you need 12mm 2.0 when you have the 12-40mm 2.8? If you're planning on shooting low light landscape or cityscape then I understand but you haven't given the reason why you want to purchase such of a lens. Why do you need the 17mm 1.8 instead of the 25mm? I got myself the 45mm 2.8 for it macro feature because I knew if I would use this lens more than the 45mm 1.8. So if you're not convinced you will use these lenses and haven't provided a reason why then don't buy them.

My last thought is that I should ditch the 9-18, 25, 40-150 and 75-300 and get the 40-150 f2.8 pro plus the teleconverter that is fore sale reasonably on an online trade site!

You said you rarely used the slower 40-150 lens so what is the point in purchasing the faster version especially you mentioned earlier you don't use the 70-300 much!

Would you put all your eggs in the two 'Pro' zoom basket?

No! These two lenses would cover a lot of situations but shooting with only two lenses is insane when you already have 5. Most people would require six lenses max and people who own more than six either has too many lenses or require them for their professional work.