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snaarman
15th March 2018, 07:42 PM
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 (http://e-group.uk.net/gallery/showphoto.php/photo/97833)

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 (http://e-group.uk.net/gallery/showphoto.php/photo/97834)

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 (http://e-group.uk.net/gallery/showphoto.php/photo/97835)

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
Interesting comparison, I hope the 7-14 didn't distort the sound from your speaker!

snaarman
15th March 2018, 10:30 PM
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
Interesting study and results Pete.
I am sure about the new wallpaper though!

MJ224
16th March 2018, 08:24 AM
Interesting comparison.

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

Zuiko
16th March 2018, 08:36 AM
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
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
Interesting comparison thanks for posting!

Zuiko
16th March 2018, 11:21 AM
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
Informative post. Good results from the 9mm bodycap. Thanks Pete.

Gwyver
16th March 2018, 04:50 PM
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
I just leave the speakers on and sit there feeling comfortably numb :D :D :D

snaarman
16th March 2018, 05:03 PM
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
I can hear the 'Echoes' of it my mind now :)

Ross the fiddler
17th March 2018, 10:35 AM
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

Otto
17th March 2018, 10:50 AM
Interesting post Pete, thanks. I had been intrigued by the "body cap" lens idea. I have an OM 16mm fisheye but I've never tried it on an MFT camera, perhaps I should.

I live in a terraced house but one built in the 18th century. The three-foot thick stone walls allow very little sound to penetrate next door even at full chat. I tested that with the neighbours :D.

MJ224
20th March 2018, 12:15 PM
Interesting comparison.

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

I have just bought a 99 Chinese fisheye, arrived today. Seems OK so far.

An Artisan 7.5mm F2.8. http://www.photobyrichard.com/reviewbyrichard/7artisans-7-5mm-f2-8-fisheye-lens-review/

But I have found out that Lightroom will defish...

Goto to lens correction, pick the Samyang 7.5 lens (same focal length), and choose a value of 71 for the distortion. Corrects it pretty good.

Photoshop does the same with its Adaptive Wide Angle Filter. Not being a Photoshop expert, I prefer the Lightroom work thru...

OV3 defish remains greyed out so assume that only works with Oly lens's...

*chr