JAK

Joined: 29th January 2010

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JAK
bforbes wrote:
I think the butterfly image suffers because of the deep shadow
If there is a raw file available I'm pretty sure that could be remedied.

Comment by JAK posted on Summer Wildlife at 05/07/2017 - 17:59

JAK
1stEverPentax wrote:
It's a great lens...no doubt about it but is too expensive for amateur/enthusiast use.
How much did your camera cost and Isn't that for amateur/enthusiast use? Any f4 100-400mm lens is going to be big and heavy and the Pentax 150-450 is pretty close to that wish. It's no good saying it is too big and heavy and costs too much, its going to be! Tell me a 400mm f/4 lens that isn't big and heavy, let alone a zoom. If the issue's cost perhaps a Sigma 150-500 or similar might fit the bill, but still big and heavy.

1stEverPentax wrote:
Also I think it's better suited to wildlife than aviation which would comprise my main subject matter. The 'wide' end at 150mm is too long...ideally should be 80-100 at this end.

A quality 70-300 f4 with T/C would be a nice alternative as I rarely shoot aircraft at anything wider than
f5.6.

Huge market for these lenses as virtually everybody but Pentax has realised and Tamron and Sigma have demonstrated that they don't have to be uber expensive.
I'm not clear whether you're wanting a FF or APS-C lens but would one of the 55-300's suit better? Really compact and light. And of course, there have been other older superzoom lenses such as the Pentax/Tamron 28-200/300 variants, often available on eBay circa £50-£100, designed FF too.
A 300mm f4 lens is always going to be pretty big and heavy, a zoom even more so.
Look around for older glass, there's so much choice or make do with the current offerings (agreed not cheap, but second hand perhaps?) FF wise Pentax can get you from 15mm to 450mm then a jump to 560mm, for APS-C from 12mm upwards, 8mm if you go for a Sigma or Samyang,.

A top quality zoom lens for aircraft shooting I would suggests is the Pentax 60-250mm. It would seem to more or less cover your preferences. Designed for FF, built for APS-C (!) but quite usable for FF regardless.

Alternatively, there's always Algi's offer of that cardboard tube! Or get one of these lenses for under £10. Complete with cookie holder!

Comment by JAK posted on 560mm f5.6 Price up a MASSIVE 60% at 05/07/2017 - 14:45

JAK
1stEverPentax wrote:
A 400mm f5.6 prime would have been a much more desirable lens for most people, even better a 100-400mm.
Is this what you want?
http://www.ricoh-imaging.co.jp/english/products/lens/k/telephoto/hdpentax-dfa-15...
Would seem to more or less cover both those wishes. Available now!

Comment by JAK posted on 560mm f5.6 Price up a MASSIVE 60% at 05/07/2017 - 13:08

JAK
Indeed, the composite panorama technique is useful when the camera doesn't permit the use of a wide-angle lens. Used the technique only last Saturday taking two shots of a carriage at the NRM with my MX-1.
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Comment by JAK posted on Which wide lens for huge landscapes? at 05/07/2017 - 12:54

JAK
Yes, even standard SD cards have a switch.

Comment by JAK posted on Pentax k-30 Sandisk Ultra 32 GB class10 card - card memory error on cameara startup or format card at 05/07/2017 - 12:05

JAK
Have you tried formatting the card? The option to do that is in set-up 3 (see page 219 of the camera manual.)
If that doesn't solve it I'd try a different card as it might be faulty.
Given there have been six firmware updates for the K-30 it might be a good idea to update it anyhow, but you'll need a working SD card to do that. Download firmware v1.06 here. However none are stated to have any effect on the SD card.
If formatting doesn't solve it, come back here and advise what card it is you're using and if other cards work OK? Is it just this particular one?

Comment by JAK posted on Pentax k-30 Sandisk Ultra 32 GB class10 card - card memory error on cameara startup or format card at 05/07/2017 - 10:33

JAK
HarisF1 wrote:
didn't even notice that the GPS switch is a slidey one on the K-1, whoops.
Just physically tried it, while it looks like a slidey switch it still has to be pressed! Apologies.

Comment by JAK posted on K3ii at 03/07/2017 - 18:10

JAK
From the K-1 product page, K3ii will be the same:
The K-1’s GPS Log function automatically keeps track of the photographer's movement at fixed intervals. By loading a log file on your computer, you can trace the route you have travelled using a mapping application such as Google Earth™
Obviously it has to be switched on for this to work! The difference seems to be the switch on the K3ii is a press switch, on the K-1 its a slide switch so less likely to get turned on accidentally.

Comment by JAK posted on K3ii at 03/07/2017 - 13:25

JAK
stu62 wrote:
it is one of those stupid buttons that even work when switched off
The on switch?!

Comment by JAK posted on K3ii at 02/07/2017 - 22:18

JAK
The shutter release?

Comment by JAK posted on K3ii at 02/07/2017 - 20:26

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