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560mm f5.6 Price up a MASSIVE 60%

JAK
Posted 05/07/2017 - 21:32 Link
400mm f5.6, they're around: https://www.pentaxforums.com/userreviews/sigma-400mm-f5-6-apo.html
One here on eBay at under 200: Sigma 400mm f5.6 MC AF prime lens for Pentax.

As to the comments regarding the 600mm lens, that was in response to RobL's post. (As I said in my post in response to yours, I wasn't sure then what you were really after.)

A 400mm lens is pretty specialist, there will be times you'd wish the lens wasn't so long! If you have two bodies in use together as some do then that's not so much of an issue.

i'm pretty sure you'd hit the same issues changing systems only with Pentax there's more older lenses available which should work just fine. With other brands, old lenses aren't always compatible with current cameras having mount and firmware issues. You might only find out once you've bought the lens (a possible costly error.) Then even if it proves compatible currently, buy a new body and the problems begin. One can't criticize Pentax for doing that to users.
John K
Edited by JAK: 05/07/2017 - 21:47
Blythman
Posted 05/07/2017 - 21:47 Link
For aviation 2 lenses to be the ideal solution. 18-135mm on my K3 and 150-450mm on my K1. Before the 150-450 came out, I was carrying the 560mm, the Sigma 150-500mm and the 18-135mm

For wildlife, I'm using the 150-450mm 80% of the time and the 560mm for the remaining 20%. The 300mm with/without the 1.4x never gets used anymore. Shame because they work lovely.
Alan


PPG
Flickr
1stEverPentax
Posted 05/07/2017 - 23:44 Link
Cheers John and Alan for your comments/input. Regarding a possible 400mm f5.6...my preferred option would be a zoom with 400 at the long end and 80-100 at the short end...very versatile but I wouldn't turn my nose up at a prime particularly if it performed reasonably well with a 1.4/1.5 convertor.

I mention my main interest being aviation but i'm quite open to other genres and would likely do a lot more bird / wildlife with such a lens, telephoto abstract, sports/outdoor, candid.

My next new lens will probably be a macro...might wait until Christmas now. Choice was going to be between Pentax 100WR / Tamron 90 / Sigma 70. There's no way i'll pay over 500 for the Pentax...not even sure i'd pay 400 so i'll have to see how that pans out...may even go down the used manual route for 150 or so...seems much better value.

Going back to the initial topic...yes 2 camera option is a possibility but with the exception of a major airshow like Fairford I can't really see me carrying two lots of stuff about and even Fairford would be a hefty workout...12hours in total of mainly standing , a bit of sitting and about 4-5 miles of walking up and down the static displays! Outside the airshow scene I always go with a specific location in mind and the best focal coverage for that location depending on the type of shot i want.
Blythman
Posted 06/07/2017 - 07:31 Link
If you are birding you never have a lens long enough. I would never want a 400mm in preference to a 450mm or a 560mm. The 150-450mm is ideal. In some hides I can get really close to Kingfishers and before I bought the zoom I was taking two bodies with the 560mm and the 300mm. There are other places where I just take the 560mm and I know I'll still have to crop.
Alan


PPG
Flickr
1stEverPentax
Posted 06/07/2017 - 12:42 Link
I agree Alan...the 150-450 is absolutely made for wildlife and i'd love one for that specific purpose...just can't see that happening any time soon!

Karlo
Mike-P
Posted 06/07/2017 - 13:47 Link
It's also perfect for airshows.

I use a 150-450mm on my K3II (with 18-135mm) and a Sigma 150-600mm Sport on my 7D (with 24-105) for airshows because 9/10 times the 100-400mm is too short, especially now the aircraft are having to fly further away from the crowd line.

As for being too expensive, it's still cheaper than both Canon and Nikons offering in that range although Sigma's new 100-400mm is getting some decent reviews (which will no doubt not be available for Pentax)
JAK
Posted 06/07/2017 - 13:47 Link
1stEverPentax wrote:
I agree Alan...the 150-450 is absolutely made for wildlife and i'd love one for that specific purpose...just can't see that happening any time soon!

Karlo

Have you spotted this: https://www.pentaxuser.com/forum/topic/fs--sigma-150-500mm-f5-0--6-3-zoom-lens-5... ?

and this https://www.pentaxuser.com/forum/topic/for-sale--pentax-60-250mm-f4-58169 ?
John K
Edited by JAK: 06/07/2017 - 13:56
Mike-P
Posted 06/07/2017 - 13:56 Link
The better lens is the Sigma 50-500mm which is half the price of the Pentax and wide enough to catch the formation flyers like the Red Arrows. It's also a little better than the 150-500mm at full stretch.
JAK
Posted 06/07/2017 - 14:02 Link
John K
Edited by JAK: 06/07/2017 - 14:04
JAK
Posted 06/07/2017 - 14:16 Link
A FF K-1 test photo with the Pentax 150-450mm @ 450mm plus 1.4x converter = 630mm (hand held.) The number sign is approx 87 metres way.
Full image
Comment Image


100% crop (actual pixels) clearly showing screw heads holding up the number sign.
Comment Image
John K
Edited by JAK: 06/07/2017 - 14:25
HarisF1
Posted 06/07/2017 - 16:12 Link
That's a LOT of detail. Are you able to upload a wider shot (35 or 50mm) so I can gauge how far the object is? My mind isn't letting me visualise a distance of 87 metres
All the gear with no idea
Edited by HarisF1: 06/07/2017 - 16:12
JAK
Posted 06/07/2017 - 16:24 Link
HarisF1 wrote:
That's a LOT of detail. Are you able to upload a wider shot (35 or 50mm) so I can gauge how far the object is? My mind isn't letting me visualise a distance of 87 metres

Herewith at 40mm.
Comment Image
John K
HarisF1
Posted 06/07/2017 - 16:28 Link
Thanks for the comparison, I can barely even see the sign in this image. Amazing detail with the bigger lens.
All the gear with no idea
JAK
Posted 06/07/2017 - 17:41 Link
HarisF1 wrote:
Amazing detail with the bigger lens.

It's a Pentax !
John K
RobL
Posted 06/07/2017 - 20:46 Link
Obvious vignetting from the 1.4x teleconverter which is a shame, please Pentax bring out a FF version!

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