All Forum Comments
Comment by pgweber posted on My 150-450 DFA is a bit of a dud at 27/06/2015 - 10:03
Comment by pgweber posted on Do you have a question for the Pentax team of experts? at 05/06/2015 - 17:46
http://www.jessops.com/online.store/categories/Digital%20SLR%20Cameras/products/Pentax/K-30%20Digital%20SLR%20Camera%20Body%20in%20Black-85727/Show.html?cm_re=INACTIVE-_-PRODUCTSDETAILS-_-APENTCM205266394
If anybody wants to send me a tip-off if the K5iis re-appears, I would be most grateful!
Comment by pgweber posted on K30 @ Jessops at 03/06/2015 - 16:50
We don't yet know how a lens is mounted on the FF (ie. dimension from the rear element / lens mount to the sensor) so for simplicity if we consider the reduction in sensor coverage when the 1.5 x crop factor is applied (as a reciprocal) we should be able to calculate the number of photosites utilised in "Cropped mode" on the FF
Thus applying the reciprocal of the crop factor (1 x 3/2) the image circle should cover 66.66% of the FF sensor which is 24mp of 36mp.
2/3 of the length but (2/3) squared, i.e. 4/9 of the area.
Megapixels are analogous to AREA, not LENGTH.
So 36MP on full frame will be about 7348 x 4899 = 35,997,852 pixels (36MP).
Taking 2/3 of those lengths and multiplying gives 4899 x 3266 = 16,000,134 pixels (16MP)
Therefore 36MP FF has photosites/pixels of the same size as 16MP on APS-C.
Hope that clarifies?
Comment by pgweber posted on FF sensor rumors at 02/06/2015 - 15:48
As for very new K-3 II, it’s equipped with a GPS system instead of pop up flash .. Hallelujah ! ☺ What do the very pentaxian (particularly those concerned by bird and sport photography) think of these choices ? Who cares whether Ricoh offers the best IQ quality camera in the market, or equipped with GPS or other gadgets, if it doesn’t prove an appropriate AF system in order to focus the subject properly with an acceptable rapidity and precision?
Shop owner: Remarkable camera, the Pentax K3, Beautiful ergonomics!
Customer: The ergonomics don't enter into it. It can't focus.
Comment by pgweber posted on About Pentax’s long standing AF issue at 28/04/2015 - 09:01
Comment by pgweber posted on Nikon Vs Pentax at 08/04/2015 - 21:15
This was aimed at anyone who lives quite near a Tesco Extra.
I don't know if it was even just a store offer only.
The tag on the front of the rack proclaimed 1/3 off and gave the 'Deal Ends' date as today.
The regular price is shown at the following link:
http://www.tesco.com/direct/sandisk-extreme-sdhc-memory-card-class-10-32gb/188-3...
Comment by pgweber posted on SanDisk Extreme at Tesco - Ends 08/04 at 08/04/2015 - 21:14
Also 16 GB (60 MB/s) at £10, but curiously 8GB (45MB/s) @ £20.
These are the ones with the gold coloured labels.
The 16 & 32 GB cards are at 1/3 off their usual prices of £15 & £20.
Hurry though, ends today!!!
Comment by pgweber posted on SanDisk Extreme at Tesco - Ends 08/04 at 08/04/2015 - 20:58
I downloaded DXO a couple of weeks ago and received the activation code at the time.
I successfully installed it and completed the on-line activation last night (03/03/15) .
Comment by pgweber posted on What software? at 04/03/2015 - 11:44
I successfully installed it and completed the on-line activation last night (03/03/15) .
Comment by pgweber posted on What software? at 04/03/2015 - 09:50
This applies to many brands and products. In the photography business the oil stains of the Nikon D600 sensor and the mirror box reflections of the Nikon D750 come to mind.
Cough-mirror flap-cough!!!