I know my two main primes will be the 14mm and 45mm. is the DMW-GWC1 good on the 14mm or should one just go with the 7.5 and defish? Anyone have and use both?
You can't compare a 7.5 mm fisheye and a 11 mm rectilinear lens.
If you don't want fisheye images, I think it's a bad idea to buy a fisheye for the following reasons:
- In the viewfinder/LCD you won't see the defished image.
- defishing works only with images taken with much care on the orientations
- corners are just ugly on an defished image. you will need to reframe and the final image would be taken from a portion of the full sensor.
It's great to have the option to defish images sometimes, but in my opinion, it doesn't make sense to make it your principal use.
I didn't take exact angle of view measures but a defished image with the 7.5 mm seems much wider than a 7.5 mm lens.
I compared to my 10-22 canon lens at 10 mm, which is supposed to be equivalent (in terms of horizontal angle of view) to 8 mm approximately.
If I cut 25% of my image I got the same horizontal angle of view, so I think it makes an approx. 6 mm rectilinear lens when defished.
(anyway, if you want a decent quality you will reframe a little to avoid the extreme corners which are just ugly when defished).
In terms of angle of view, comparing a defished rockinon with the 14 mm + adapter is like comparing a 25 mm and a 45 mm.
In the end it all depends on what you want.
If you want a fisheye, the rockinon is great.
If you want a rectilinear wide angle, the GWC1 is a quite cheap way to get one (not very wide), the 9-18 is another (more expensive and more versatile) option.
Now, I have a 10.5mm on the 14mm f/2.5 (21mm equiv @ f/2.5)
So, is the 14 + wide angle converter confirmed to be 10.5mm? I thought it was 11.5mm? Lord forbid actually specs be easy to find
You know, if it really IS a 10.5mm, and since I only have $100 tied up into it, and it's an f2.5, maybe keeping the converter is the right decision vs getting the 9-18 f4-5.6.
You see, there's a lot of difference between 11.5 and 10.5. There's also a lot of difference between 10.5 and 9. BUT, as I already have 10.5 (I think) and since getting that 9mm would be $500 (minus $100 for selling the converter), maybe keeping the 10.5mm is good. But, I've been saying "11.5" months and no one has corrected me. Hmm, I'm going to try to look that up now!
Okay, I have a few questions:
Exactly how wide IS the 14 + converter combo? Since it's 0.79x would it be simply 11mm?
How do you guys use the combo? Do you leave the adapter ring on and twist the converter on and off (which isn't fun) or do you simply treat the converter like a filter and screw it on and off as you need it? (Also not fun.) Considering Panasonic is nice enough to give you a cap for the adapter ring itself, I'm assuming the first is the recommended way, but I like the second method better, actually.
If I get a 37mm-46mm stepup ring I could use the lens on my 12-32. It would make it a 9.5mm, but probably vignette. Anyone try?