Pentax fisheye lens - suggestions?

Michael Piziak · 01-17-2023, 01:12 AM

Originally posted by pschlute

I took this with the 10-17 on my K-1 in crop mode. So this is what you will get at 10mm on aps-c.

wow! What a photo!
What type of control room is this ??

Sandy Hancock · 01-17-2023, 02:21 AM - **5 Likes**

HD DA 10-17 @ 10mm on the KP

SMC DA 10-17 @ 10mm

SMC DA 10-17 @ 17mm

K 17/4.0

pschlute · 01-17-2023, 02:24 AM - **2 Likes**

Originally posted by Michael Piziak

wow! What a photo!
What type of control room is this ??

This is the Electrical Control Room in my home town Woking, Surrey , UK

It was built in the 1930's in art-deco style and controlled the electrical supply to a large part of the railway in the county. Testament to it's practical design, as well as it's form, it continued in use until 1997.

One of the fascinating things about it was that when in use it was entirely powered by two massive hydrogen rechargeable batteries. As its role was to deal with problems with mains electrical supply, it could not afford to be subject to a power cut itself.

**jersey** · 01-17-2023, 06:15 AM

There is also pancake 18mm f.11 from Takumar, but it is M42.

**UncleVanya** · 01-17-2023, 06:39 AM

Originally posted by Michael Piziak

Are these two for APS-C cameras?

They are: Samyang 8mm F3.5 Fisheye CS Lens Reviews - Samyang Lenses - Pentax Lens Review Database

There are two versions. The version I’ve owned is the one where the hood is fixed in place.

Password1234 · 01-17-2023, 06:58 AM

The 10-17 is very nice indeed and is well build, you can even use it at the end of the range on film camera with aperture control.

Michael Piziak · 01-17-2023, 07:24 AM

Originally posted by Sandy Hancock

HD DA 10-17 @ 10mm on the KP ...

Thanks, those are really neat pics !

---------- Post added 01-17-23 at 07:26 AM ----------

Originally posted by pschlute

This is the Electrical Control Room in my home town Woking, Surrey , UK

It was built in the 1930's in art-deco style and controlled the electrical supply to a large part of the railway in the county. Testament to it's practical design, as well as it's form, it continued in use until 1997.

One of the fascinating things about it was that when in use it was entirely powered by two massive hydrogen rechargeable batteries. As its role was to deal with problems with mains electrical supply, it could not afford to be subject to a power cut itself.

So where did the power come from to charge the 2 massive batteries - water, wind, the power grid - ?

It is very neat looking, and yes, it also has quite the retro look & feel to it!

**UncleVanya** · 01-17-2023, 07:58 AM

Originally posted by Michael Piziak

So where did the power come from to charge the 2 massive batteries - water, wind, the power grid - ?

Hydrogen cells are chemical batteries as far as I know. They aren’t recharged typically in the way that you are suggesting. Rechargeable Nickel Hydrogen batteries were invented in the 1970s too late to be what was used in this case.

https://en.m.wikipedia.org/wiki/Fuel_cell

They do need a source of fuel - which can come from hydrolysis of water.

**Bob 256** · 01-17-2023, 08:55 AM

Originally posted by pschlute

This is the Electrical Control Room in my home town Woking, Surrey , UK

It was built in the 1930's in art-deco style and controlled the electrical supply to a large part of the railway in the county. Testament to it's practical design, as well as it's form, it continued in use until 1997.

One of the fascinating things about it was that when in use it was entirely powered by two massive hydrogen rechargeable batteries. As its role was to deal with problems with mains electrical supply, it could not afford to be subject to a power cut itself.

When did you take the photo (sometime after the K1 was introduced, I take it)? It looks like the control room is new although I know many places like that are meticulously kept and have a tendency to look new, well into their lives. Very nice shot of times gone by, and with an appropriate lens.

Added Note: I also have the Rokinon f3.5 8mm fisheye and it's a good choice for APS-C Pentax users. It's less fishy than a full fisheye (only shows a rectangular image - not a circular one - and is described as having a "stereograpphic" projection), and can be had on sale for less than $200US on occasion. I think I picked mine up for around $140 but it is the version like UncleVanya's with the non-removable hood (wish I had gotten the removable hood type as it could be used full-frame for the more circular fisheye type coverage). I more recently purchased the Rokinon 12mm f2.8 which produces almost the same image but in full-frame. Both are pretty solid optically and the 8mm is showing up used in various places.

pschlute · 01-17-2023, 09:10 AM

Originally posted by Michael Piziak

So where did the power come from to charge the 2 massive batteries

Chemical reaction I think, but I am no expert.

Originally posted by Bob 256

When did you take the photo?

Last September. The building and control room are "listed" which means they are protected from redevelopment.

The room is open one weekend a year during a Heritage Open Day event. They look after it very well.

Michael Piziak · 01-17-2023, 09:26 AM

Thanks everyone for your suggestions.

When the time comes to upgrade, I will be upgrading to Full Frame, so I'm wondering if the lens made for FF would give descent results on ASP-C (or not).

I would like to see some photos of the PENTAX-F FISH-EYE 17-28mm

on an ASP-C camera....

kypfer · 01-17-2023, 10:17 AM

I've recently re-implemented my *ist film camera so's I can take full advantage of my long-since owned Peleng 8mm f/3.5 and Fujinon 16mm f/2.8 fish-eye lenses.
The former uses screw-on filters at the back of the lens … it came with an orange, yellow and green, the latter has a built-in filter wheel with blue, orange and yellow.
The 8mm is a "full-circle" lens, no hood, so it's easy to get my feet in the picture even if I don't want them there, the 16mm is a full-frame lens with a 180° angle-of-view across the diagonal.
Both lenses are 42-screw and were bought new-old-stock very cheaply when M42 cameras were being phased out

**Suhail** · 01-17-2023, 10:37 AM

Originally posted by Sandy Hancock

HD DA 10-17 @ 10mm on the KP

SMC DA 10-17 @ 10mm

SMC DA 10-17 @ 17mm

K 17/4.0

Wow! I would like to emulate those two landscape shots.

**UncleVanya** · 01-17-2023, 06:15 PM - **1 Like**

Originally posted by Michael Piziak

Thanks everyone for your suggestions.

When the time comes to upgrade, I will be upgrading to Full Frame, so I'm wondering if the lens made for FF would give descent results on ASP-C (or not).

I would like to see some photos of the PENTAX-F FISH-EYE 17-28mm

on an ASP-C camera....

Any fisheye that works on FF will have at best weak fishiness on apsc.

GrimlyFiendish · 01-18-2023, 04:44 PM

I have a fisheye...

01-17-2023, 08:55 AM	#24
Bob 256 Site Supporter Join Date: Jun 2008 Location: Idaho Photos: Gallery Posts: 2,375	Originally posted by pschlute This is the Electrical Control Room in my home town Woking, Surrey , UK It was built in the 1930's in art-deco style and controlled the electrical supply to a large part of the railway in the county. Testament to it's practical design, as well as it's form, it continued in use until 1997. One of the fascinating things about it was that when in use it was entirely powered by two massive hydrogen rechargeable batteries. As its role was to deal with problems with mains electrical supply, it could not afford to be subject to a power cut itself. When did you take the photo (sometime after the K1 was introduced, I take it)? It looks like the control room is new although I know many places like that are meticulously kept and have a tendency to look new, well into their lives. Very nice shot of times gone by, and with an appropriate lens. Added Note: I also have the Rokinon f3.5 8mm fisheye and it's a good choice for APS-C Pentax users. It's less fishy than a full fisheye (only shows a rectangular image - not a circular one - and is described as having a "stereograpphic" projection), and can be had on sale for less than $200US on occasion. I think I picked mine up for around $140 but it is the version like UncleVanya's with the non-removable hood (wish I had gotten the removable hood type as it could be used full-frame for the more circular fisheye type coverage). I more recently purchased the Rokinon 12mm f2.8 which produces almost the same image but in full-frame. Both are pretty solid optically and the 8mm is showing up used in various places. Last edited by Bob 256; 01-17-2023 at 09:16 AM.

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01-17-2023, 01:12 AM	#16
Michael Piziak Closed Account Join Date: Dec 2013 Location: West Virginia Posts: 2,815 Original Poster	Originally posted by pschlute I took this with the 10-17 on my K-1 in crop mode. So this is what you will get at 10mm on aps-c. wow! What a photo! What type of control room is this ??

01-17-2023, 02:21 AM - 5 Likes	#17
Sandy Hancock Moderator Site Supporter Join Date: Feb 2012 Location: Adelaide Hills, South Australia Photos: Gallery \| Albums Posts: 11,272	HD DA 10-17 @ 10mm on the KP SMC DA 10-17 @ 10mm SMC DA 10-17 @ 17mm K 17/4.0

01-17-2023, 02:24 AM - 2 Likes	#18
pschlute Moderator Loyal Site Supporter Join Date: Mar 2007 Location: Surrey, UK Photos: Gallery Posts: 8,202	Originally posted by Michael Piziak wow! What a photo! What type of control room is this ?? This is the Electrical Control Room in my home town Woking, Surrey , UK It was built in the 1930's in art-deco style and controlled the electrical supply to a large part of the railway in the county. Testament to it's practical design, as well as it's form, it continued in use until 1997. One of the fascinating things about it was that when in use it was entirely powered by two massive hydrogen rechargeable batteries. As its role was to deal with problems with mains electrical supply, it could not afford to be subject to a power cut itself.

01-17-2023, 06:15 AM	#19
jersey Site Supporter Join Date: Jun 2017 Location: 3City agglomeration Photos: Gallery \| Albums Posts: 2,056	There is also pancake 18mm f.11 from Takumar, but it is M42.

01-17-2023, 06:39 AM	#20
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,402	Originally posted by Michael Piziak Are these two for APS-C cameras? They are: Samyang 8mm F3.5 Fisheye CS Lens Reviews - Samyang Lenses - Pentax Lens Review Database There are two versions. The version I’ve owned is the one where the hood is fixed in place.

01-17-2023, 06:58 AM	#21
Password1234 Senior Member Join Date: Apr 2017 Location: Montreal Photos: Gallery Posts: 143	The 10-17 is very nice indeed and is well build, you can even use it at the end of the range on film camera with aperture control.

01-17-2023, 07:24 AM	#22
Michael Piziak Closed Account Join Date: Dec 2013 Location: West Virginia Posts: 2,815 Original Poster	Originally posted by Sandy Hancock HD DA 10-17 @ 10mm on the KP ... Thanks, those are really neat pics ! ---------- Post added 01-17-23 at 07:26 AM ---------- Originally posted by pschlute This is the Electrical Control Room in my home town Woking, Surrey , UK It was built in the 1930's in art-deco style and controlled the electrical supply to a large part of the railway in the county. Testament to it's practical design, as well as it's form, it continued in use until 1997. One of the fascinating things about it was that when in use it was entirely powered by two massive hydrogen rechargeable batteries. As its role was to deal with problems with mains electrical supply, it could not afford to be subject to a power cut itself. So where did the power come from to charge the 2 massive batteries - water, wind, the power grid - ? It is very neat looking, and yes, it also has quite the retro look & feel to it!

01-17-2023, 07:58 AM	#23
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,402	Originally posted by Michael Piziak So where did the power come from to charge the 2 massive batteries - water, wind, the power grid - ? Hydrogen cells are chemical batteries as far as I know. They aren’t recharged typically in the way that you are suggesting. Rechargeable Nickel Hydrogen batteries were invented in the 1970s too late to be what was used in this case. https://en.m.wikipedia.org/wiki/Fuel_cell They do need a source of fuel - which can come from hydrolysis of water.

01-17-2023, 09:10 AM	#25
pschlute Moderator Loyal Site Supporter Join Date: Mar 2007 Location: Surrey, UK Photos: Gallery Posts: 8,202	Originally posted by Michael Piziak So where did the power come from to charge the 2 massive batteries Chemical reaction I think, but I am no expert. Originally posted by Bob 256 When did you take the photo? Last September. The building and control room are "listed" which means they are protected from redevelopment. The room is open one weekend a year during a Heritage Open Day event. They look after it very well.

01-17-2023, 09:26 AM	#26
Michael Piziak Closed Account Join Date: Dec 2013 Location: West Virginia Posts: 2,815 Original Poster	Thanks everyone for your suggestions. When the time comes to upgrade, I will be upgrading to Full Frame, so I'm wondering if the lens made for FF would give descent results on ASP-C (or not). I would like to see some photos of the PENTAX-F FISH-EYE 17-28mm on an ASP-C camera....

01-17-2023, 10:17 AM	#27
kypfer Pentaxian Join Date: Jan 2018 Location: Jersey C.I. Posts: 3,593	I've recently re-implemented my ist film camera so's I can take full advantage of my long-since owned Peleng 8mm f/3.5 and Fujinon 16mm f/2.8 fish-eye lenses. The former uses screw-on filters at the back of the lens … it came with an orange, yellow and green, the latter has a built-in filter wheel with blue, orange and yellow. The 8mm is a "full-circle" lens, no hood, so it's easy to get my feet in the picture even if I don't want them there, the 16mm is a full-frame lens with a 180° angle-of-view across the diagonal. Both lenses are 42-screw and were bought new-old-stock* very cheaply when M42 cameras were being phased out

01-17-2023, 10:37 AM	#28
Suhail Loyal Site Supporter Join Date: Aug 2013 Location: Mississauga Photos: Gallery Posts: 345	Originally posted by Sandy Hancock HD DA 10-17 @ 10mm on the KP SMC DA 10-17 @ 10mm SMC DA 10-17 @ 17mm K 17/4.0 Wow! I would like to emulate those two landscape shots.

01-17-2023, 06:15 PM - 1 Like	#29
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,402	Originally posted by Michael Piziak Thanks everyone for your suggestions. When the time comes to upgrade, I will be upgrading to Full Frame, so I'm wondering if the lens made for FF would give descent results on ASP-C (or not). I would like to see some photos of the PENTAX-F FISH-EYE 17-28mm on an ASP-C camera.... Any fisheye that works on FF will have at best weak fishiness on apsc.