Fisheye lens


marmimag

Link Posted 16/01/2013 - 23:32
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

Link Posted 17/01/2013 - 00:01
The obvious choice is the SMC Pentax-DA 10-17mm Fisheye zoom lens. It ticks all the boxes!
Best regards, John

marmimag

Link Posted 17/01/2013 - 00:08
Thanks John!
Thought this might be the case !
Maggi

Marmimag

Smeggypants

Link Posted 17/01/2013 - 01:28
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

Link Posted 17/01/2013 - 09:14
Yes I agree with John and Smeggy, it ticks all the boxes!
Regards John/Jumbo

LennyBloke

Link Posted 17/01/2013 - 09:23
Or slightly cheaper (and wider) you could try a Samyang 8mm f3.5 Fisheye - LCE has one Second Hand for Ł199 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

Link Posted 17/01/2013 - 12:47
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

Link Posted 20/01/2013 - 12:35
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
My PPG site
Last Edited by szgabor on 20/01/2013 - 12:36

pentaxian450

Link Posted 20/01/2013 - 18:33
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

Link Posted 20/01/2013 - 18:49
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

Link Posted 20/01/2013 - 19:44
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

Link Posted 20/01/2013 - 20:18
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

Link Posted 21/01/2013 - 01:31
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

Link Posted 22/01/2013 - 11:56
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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