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-   -   Something fishy (9mm) (http://e-group.uk.net/forum/showthread.php?t=47447)

snaarman 15th March 2018 07:42 PM

Something fishy (9mm)
 
I recently added the 9mm f8 body cap fisheye to my slim collection of lenses. I thought I would test the angle of coverage compared to the Panasonic 7-14mm wide zoom.

So here we have:

The Panasonic at 7mm. It is nice and straight, but note how my Celestion speaker bottom right has been stretched.

http://e-group.uk.net/gallery/data/622/PEN50004.jpg

The body cap 9mm. OK, this is better than a joke lens and fairly sharp in the centre. It isn't a match for a proper fisheye or wide angle - but hey it's so small you can always have it with you in a pocket. Now the proportions of the speaker are more correct, but everything is curved.

http://e-group.uk.net/gallery/data/622/PEN50005.jpg

The body cap lens after being de-fished using the Imadio Fisheye-Hemi plugin* Note that the speaker keeps it's proportions and has been straightened quite a bit. The end result is very slightly wider than 7mm.

http://e-group.uk.net/gallery/data/622/PEN50005A.jpg

So, what do we learn. The body cap lens is actually OK. It is very small and much cheaper than a mega wide lens or a serious fisheye. It isn't a full circle fisheye, it bends things a bit, it can be straightened.

Pete

*By trial and error I found a magic method to get the straightest de-fish from Imado. As you see, I haven't spent my 24 on it just yet.

Zuiko 15th March 2018 10:17 PM

Re: Something fishy (9mm)
 
Interesting comparison, I hope the 7-14 didn't distort the sound from your speaker!

snaarman 15th March 2018 10:30 PM

Re: Something fishy (9mm)
 
Quote:

Originally Posted by Zuiko (Post 442727)
Interesting comparison, I hope the 7-14 didn't distort the sound from your speaker!

He, he.. my lovely 1970s Ditton 44s. Alas I don't listen to them much these days.

I'm impressed how the mega wide lenses make the lounge at Snaar towers look like a long narrow garage conversion. In fact it is about 15 by 25 feet, not 8 x 40 like the picture shows...

IainMacD 16th March 2018 07:57 AM

Re: Something fishy (9mm)
 
Interesting study and results Pete.
I am sure about the new wallpaper though!

MJ224 16th March 2018 08:24 AM

Re: Something fishy (9mm)
 
Interesting comparison.

OV3 does a de-fish. Be interesting to see that work...........*chr

Zuiko 16th March 2018 08:36 AM

Re: Something fishy (9mm)
 
Quote:

Originally Posted by snaarman (Post 442728)
He, he.. my lovely 1970s Ditton 44s. Alas I don't listen to them much these days.

I'm impressed how the mega wide lenses make the lounge at Snaar towers look like a long narrow garage conversion. In fact it is about 15 by 25 feet, not 8 x 40 like the picture shows...

And they say the camera doesn't lie!

Why don't you listen to the Dittons nowadays? I would expect the sound to be superb.

snaarman 16th March 2018 09:03 AM

Re: Something fishy (9mm)
 
Quote:

Originally Posted by Zuiko (Post 442741)
Why don't you listen to the Dittons nowadays? I would expect the sound to be superb.

Oh they do sound nice. But when I sit and put Pink Floyd on there's a strange banging on the wall. :(

AMc 16th March 2018 11:07 AM

Re: Something fishy (9mm)
 
Interesting comparison thanks for posting!

Zuiko 16th March 2018 11:21 AM

Re: Something fishy (9mm)
 
Quote:

Originally Posted by snaarman (Post 442747)
Oh they do sound nice. But when I sit and put Pink Floyd on there's a strange banging on the wall. :(

Ah, someone else who is forced to use headphones. :(

OM USer 16th March 2018 11:38 AM

Re: Something fishy (9mm)
 
Informative post. Good results from the 9mm bodycap. Thanks Pete.

Gwyver 16th March 2018 04:50 PM

Re: Something fishy (9mm)
 
Quote:

Originally Posted by snaarman (Post 442747)
Oh they do sound nice. But when I sit and put Pink Floyd on there's a strange banging on the wall. :(

Perhaps it's just Another Brick in the Wall ? :)

Keith-369 16th March 2018 04:58 PM

Re: Something fishy (9mm)
 
I just leave the speakers on and sit there feeling comfortably numb :D :D :D

snaarman 16th March 2018 05:03 PM

Re: Something fishy (9mm)
 
Quote:

Originally Posted by Keith-369 (Post 442793)
I just leave the speakers on and sit there feeling comfortably numb :D :D :D

Yes.

In fact now I've got that feeling once again, I can't explain - you would not understand. :)

Keith-369 16th March 2018 06:09 PM

Re: Something fishy (9mm)
 
I can hear the 'Echoes' of it my mind now :)

Ross the fiddler 17th March 2018 10:35 AM

Re: Something fishy (9mm)
 
Interesting comparison. I recently bought the 9mm body cap fisheye lens too, to put on my neglected E-M5. I'm impressed with I can get with with it, although the focus does need setting correctly for each situation & scene though. I have a nice pair of speakers I built several decades ago that allow me to share my music with the neighbours (I used to). I'm sure they just love the 1812 Overture at realistic levels for the cannons. ;) :D
Pink Floyd, Dark Side of the Moon goes well too. *yes

*chr


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