Fisheye lens

marmimag
Posted 16/01/2013 - 23:32 Link
I a looking to get a fisheye lens for my K20d and wanted to know the Best one to buy - Pentax, Sigma, Tamron
Pref with a zoom
Any suggestions welcome !
Many thanks

Maggi


Marmimag
johnriley
Posted 17/01/2013 - 00:01 Link
The obvious choice is the SMC Pentax-DA 10-17mm Fisheye zoom lens. It ticks all the boxes!
Best regards, John
marmimag
Posted 17/01/2013 - 00:08 Link
Thanks John!
Thought this might be the case !
Maggi
Marmimag
Smeggypants
Posted 17/01/2013 - 01:28 Link
johnriley wrote:
The obvious choice is the SMC Pentax-DA 10-17mm Fisheye zoom lens. It ticks all the boxes!
Couldn't agree more. Superb lens!!
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Jumbo48
Posted 17/01/2013 - 09:14 Link
Yes I agree with John and Smeggy, it ticks all the boxes!
Regards John/Jumbo
LennyBloke
Posted 17/01/2013 - 09:23 Link
Or slightly cheaper (and wider) you could try a Samyang 8mm f3.5 Fisheye - LCE has one Second Hand for £199 at present:

http://www.lcegroup.co.uk/Used/Pentax-Fit-Samyang-8mm-f3.5-Fisheye_67058.html

I've no experience of it myself - sorry
LennyBloke
pentaxian450
Posted 17/01/2013 - 12:47 Link
If I remember correctly, the Samyang is a "full frame" lens. Being so, it wont offer a 180 deg. field of view on an APS-C camera.
Yves (another one of those crazy Canucks)
szgabor
Posted 20/01/2013 - 12:35 Link
Sorry Yves but you're wrong. The Samyang lens isn't usable with the FF bodies. It isn't only vignetting but the whole lenshood is seen at the edges of the frame.
Otherwise this lens is great with its nearly 180 degrees view angle and it has a good value for money.
Regards,
Gábor
My website
Edited by szgabor: 20/01/2013 - 12:36
pentaxian450
Posted 20/01/2013 - 18:33 Link
szgabor wrote:
Sorry Yves but you're wrong. The Samyang lens isn't usable with the FF bodies. It isn't only vignetting but the whole lenshood is seen at the edges of the frame.
Otherwise this lens is great with its nearly 180 degrees view angle and it has a good value for money.
A "real" 180 deg. fisheye on a full frame body has a circular image, so the Samyang might well be a true full frame fish eye.

The Pentax 10-17 mm is designed like a fisheye, but the 180 deg. field of view is in the diagonal only. The original fisheye lenses do have the 180 deg. field of view all around, and some fisheye lenses go even further (Nikon designed a fisheye lens with a 220 deg. field of view circular image).
Yves (another one of those crazy Canucks)
Smeggypants
Posted 20/01/2013 - 18:49 Link
pentaxian450 wrote:
szgabor wrote:
Sorry Yves but you're wrong. The Samyang lens isn't usable with the FF bodies. It isn't only vignetting but the whole lenshood is seen at the edges of the frame.
Otherwise this lens is great with its nearly 180 degrees view angle and it has a good value for money.
A "real" 180 deg. fisheye on a full frame body has a circular image, so the Samyang might well be a true full frame fish eye.

The Pentax 10-17 mm is designed like a fisheye, but the 180 deg. field of view is in the diagonal only. The original fisheye lenses do have the 180 deg. field of view all around, and some fisheye lenses go even further (Nikon designed a fisheye lens with a 220 deg. field of view circular image).
And it's huge
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
smudge
Posted 20/01/2013 - 19:44 Link
I have a Samyang 8mm which I am happy with, though I have never used another fisheye to compare it with. What is the advantage of AF and zoom on a fisheye? Is it worth paying extra for?
Regards, Philip
punkrockemo
Posted 20/01/2013 - 20:18 Link
I have the Pentax 10-17 Fisheye and used to own Samyang Fisheye, they are both good lenses, the biggest diference i found was that the Samyang would not allow as close focusing as the Pentax lens. I think the nearest the Samyang was approx 30cm but the pentax will allow focusing almost touching the lens.

I never missed AF on the Samyang as it is hard to get it out of focus.
Smeggypants
Posted 21/01/2013 - 01:31 Link
punkrockemo wrote:
I have the Pentax 10-17 Fisheye and used to own Samyang Fisheye, they are both good lenses, the biggest diference i found was that the Samyang would not allow as close focusing as the Pentax lens. I think the nearest the Samyang was approx 30cm but the pentax will allow focusing almost touching the lens.

I never missed AF on the Samyang as it is hard to get it out of focus.
This is one of the things I love about it.
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
tsp_k-5
Posted 22/01/2013 - 11:56 Link
I've got the Pentax 10-17 as well and it is a great lens - I like the flexibility the zoom provides between view angle and "fish eye effect"
K-5 / Pentax 10-17 / Sigma 17-70 / Pentax 55-300 / Sigma 105

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