JensR

so edgy

> And here we have someone who didn’t read the entire article. It addresses your supposition that video features increase cost. (They don’t.)

The article merely adds a counter supposition, without...

@janist74 Rolandigital was being sarcastic. An 18-180 or 20-200 for full frame is not feasible, so he exaggerated to something clearly absurd to make a joke. The widest full frame 10x zooms are the...

masklayer - FWIW, the DA70/2.4 is really a nice lens on the K1. Corners are not super great wide open, but it's one of my favourite lenses on the K1. I finally bought it for that purpose after...

I use my DFA 100/2.8 Macro for landscapes and it's compact enough as a walkaround. I guess the 85/1.4 would allow me to focus my landscape photos at quarter moon rather than full moon, but that's a...

That is highly questionable. The start of the calendar year is basically arbitrary and creates a hard cut-off - which is never a good sign if your algorithm does this. If you need to save money by...

Cheers for that detail!
I have to admit I had not realised that Pentax had fallen off the Samyang train that clearly already :(
I still think that Samyang effectively removing Pentax support from...

Mistral75 - You are right, but many (most?) of these new lenses are mirrorless, so I was not too surprised that there were no new SLR lenses from Samyang for Pentax in the recent years.
You have...

Exactly! And I fear it might be a sign of things to come and Samyang might drop Pentax support for more lenses in the future.
I own two Samyang PKA-mount lenses and would seriously consider these...

As others have said, rear glass filters are common on tele lenses, rear gel filters common on wide angles, internal filter carousels have been used on (at least) fisheye lenses and Laowa offers a...

> I am tired to answer always the same thing.

Great, one thing we have in common.

> What's the point if you could not hear?

I can hear you, but what I hear is that a few posts ago you still...

"all the technical expletive"

Equivalence is a proven method, it has clear equations, while you are just listing some observations without any science connecting them.

> It will never match...

There is nothing in equivalence that says you cannot enjoy that MFT with a 20/1.7. And if you value compactness for your style of photography, then that is your prerogative.
All that equivalence...

This has nothing to do with a lab. Making photos, however artistic, is ultimately about counting photons. The more precisely we can count them, the less noise our images have, which allows us more...

EXkurogane - There have been like 50 posts in this thread and you still managed to miss a key concept of equivalence, namely that it is *more* than DOF and tells you how many photons are captured...

ah nice lens!
Although I am a bit confused why you call this equivalent to a 400/2.8 after all we have talked about!
This lens is equivalent (same DOF, photons per time, same FOV) to Canon's...

I think no one here as made any statement that a certain system or size is universally superior to another. My argument was that listing equivalent f-numbers allows people to quickly compare...

>> Would you agree that MFT 25/2 and FF 50/4 have the same diagonal FOV, same DOF, same aperture diameter and same number of photons captured per time?

> of course !!!

Great! So I assume you see...

> f number is an absolute number

I'm not sure what you mean by "absolute" - it's a ratio after all. Is it an "absolute ratio"?

Have you every wondered whether two equivalent settings having...

dpreview has published at least one article on what equivalence and equivalent f-number means, but maybe they should link to it every time so that more people see...