All Forum Comments
The Pentax 60-250 is known for this. At closest focus distance the FL is more like 190mm.
This effect happens to most zooms and is quite normal.
This effect happens to most zooms and is quite normal.
Comment by pschlute posted on Terminology - Focus Breathing at 02/06/2020 - 21:45
Apart from the annoying presenting style the content is rubbish.
1. He is using unprocessed raw files as a comparison.
2. the focus point in the two comparisons are not the same.
3. if he has tried 4 copies and gets the same results then clearly the camera is in need of AF/FA calibration.
Amateurville
1. He is using unprocessed raw files as a comparison.
2. the focus point in the two comparisons are not the same.
3. if he has tried 4 copies and gets the same results then clearly the camera is in need of AF/FA calibration.
Amateurville
Comment by pschlute posted on DFA*f2.8 70-200mm at 01/06/2020 - 23:10
Thanks for all the comments.
This image was a good refresher lesson for me in a number of areas.
1. Exposure....... The flower was in the full glare of the afternoon sun. I deliberately underexposed to avoid blowing the highlights. I gave the yellows and reds a little (not much) boost in PP to accentuate them.
2. The background to the flower is actually the front door area of our house, a brown door with glass panels, and white walls. Because of the wide difference in light levels between the flower (direct sun) and the background (shade), the latter has not shown at all. I did not need to darken this in PP, although the underexposure did help of course.
3. Focus..... It was impossible for me to see clearly enough through the viewfinder to focus manually. The strong sunlight directly at my right meant that it was a foggy blur (I wear glasses). Normally in this situation I would rely in Live View zoomed 100% to focus accurately with a manual focus lens. But the M* 300mm has no tripod collar and so I relied on AF confirmation with the green hexagon. Having established a while ago that my K1 needs between +6 and +10 AF/FA with various lenses I had previously set up the APPLY-ALL AF/FA menu to +8. That means when a manual lens is mounted the focus confirmation uses that adjustment. The side light was so bright I had to rely on the pesky beep as I could not actually see the green hexagon light up.
4. The rose itself. A number of friends have asked what it is called. We have over the the years spent quite a bit of money on specialist roses from various suppliers but this one is actually a £1.99 special from Woolworths purchased a number of years ago. It has always done well and never suffers from the usual rose problems. When I usually take flower pictures I am careful to use the spot healing brush to get rid of blemishes and the odd insect, but this required none of that.
This image was a good refresher lesson for me in a number of areas.
1. Exposure....... The flower was in the full glare of the afternoon sun. I deliberately underexposed to avoid blowing the highlights. I gave the yellows and reds a little (not much) boost in PP to accentuate them.
2. The background to the flower is actually the front door area of our house, a brown door with glass panels, and white walls. Because of the wide difference in light levels between the flower (direct sun) and the background (shade), the latter has not shown at all. I did not need to darken this in PP, although the underexposure did help of course.
3. Focus..... It was impossible for me to see clearly enough through the viewfinder to focus manually. The strong sunlight directly at my right meant that it was a foggy blur (I wear glasses). Normally in this situation I would rely in Live View zoomed 100% to focus accurately with a manual focus lens. But the M* 300mm has no tripod collar and so I relied on AF confirmation with the green hexagon. Having established a while ago that my K1 needs between +6 and +10 AF/FA with various lenses I had previously set up the APPLY-ALL AF/FA menu to +8. That means when a manual lens is mounted the focus confirmation uses that adjustment. The side light was so bright I had to rely on the pesky beep as I could not actually see the green hexagon light up.
4. The rose itself. A number of friends have asked what it is called. We have over the the years spent quite a bit of money on specialist roses from various suppliers but this one is actually a £1.99 special from Woolworths purchased a number of years ago. It has always done well and never suffers from the usual rose problems. When I usually take flower pictures I am careful to use the spot healing brush to get rid of blemishes and the odd insect, but this required none of that.
Comment by pschlute posted on Flower shot with the M* 300mm f4 at 31/05/2020 - 22:53
The detail is pretty nice
Comment by pschlute posted on Bee prepared at 31/05/2020 - 19:09
Lovely. This picture captures so many facets of what is going on in that wonderful brain of hers.
Comment by pschlute posted on Just Woken Up at 31/05/2020 - 19:08
Nice detail
Comment by pschlute posted on Leaf It Out at 31/05/2020 - 19:06
The second for me, but all are filled with the colours of the spring/summer changeover.
Comment by pschlute posted on Dusting off the DFA 28-105 at 31/05/2020 - 19:05
I really like the first one too. The light is superb.
I am very pleased you are back Nigel. Without your excellent flash guides I would not have embraced the art-form it as I have.
You do not live that far from me and when this current crisis is over we should go for a photo expedition together, or at least find a pub !
I am very pleased you are back Nigel. Without your excellent flash guides I would not have embraced the art-form it as I have.
You do not live that far from me and when this current crisis is over we should go for a photo expedition together, or at least find a pub !
Comment by pschlute posted on Bouncing Back at 31/05/2020 - 19:04
