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Forum: Pentax News and Rumors
01-17-2021, 04:15 PM
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I don't see my lens in the list, so logically the only thing I can consider is that this tournament is completely rigged. :D
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Forum: Photo Critique
12-28-2020, 03:48 PM
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Victoria Falls, Zimbabwe
Pentax 67II, 55 mm
HP5 @ ASA 250 in HC-110
Oriental Seagull FB G3
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Forum: Post Your Photos!
12-24-2020, 12:20 PM
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real life cowboys cutting the herd
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Forum: Post Your Photos!
12-22-2020, 08:15 AM
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Dreaming of going home for Christmas.... won’t happen this year.
lots of post processing on this one
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Forum: Photographic Technique
12-18-2020, 11:22 PM
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A question came up in a recent comment about how use CiF (catch-in-focus, aka focus-trapping) for unattended shooting and while I was thinking up a response, it occurred to me that it might be good to broaden the audience a bit with a post here and possible expansion at some point to a full article.
Note: This tutorial assumes one already knows how to set up and and use CiF with the desired lenses on one's camera. Troubleshooting for CiF in general is probably a bit out of scope.
How it works:
In short, when the camera is using CiF in continuous shooting mode, exposures will be made at the set rate whenever in-focus is detected for as long as the shutter button is depressed. When using a wired remote or intervalometer, one can leave the shutter depressed for extended periods of time in a manner similar to doing a timed exposure in B mode. An intervalometer provides the advantage of being able to set a firm limit on how long the shutter press will last.
Things to be aware of:- There are better ways of doing unattended "event driven" shooting than using CiF in this way, but those require specialized equipment and/or software.
- There may be many trapped exposures depending on what you are photographing. For example a hummingbird feeder may be quite active.
- There may be very few trapped exposures on things like a game trail
- The camera will be ON for the entire session. It might be good to limit sessions to a reasonable time span either by setting a timer for yourself or using an intervalometer.
Preparation and Gear:- Your camera should support the following:
- CiF (duh!)
- External power (wall outlet or battery pack)
- Wired remote shutter release
- Heat and power are potential issues. You will want to configure:
- Rear display off
- Top display light off
- Instant review off
- Camera and other kit (flash and such) may need protection from weather, people, and animals.
- You will need a sturdy tripod or other camera support.
- You will need a wired remote capable of locking the release button in the down position or timing the duration of "button press". I suggest a remote with built-in intervalometer to do the latter. (Yes, I did mention that a third time.)
- You will need a battery pack or AC adapter capable of powering the camera for the full session.
- You will need memory cards of sufficient capacity
- You may need some way to manage heat or cold
Considerations when doing setup, testing, and dry runs:- CiF is limited to the center point...sorry.
- CiF requires light and works better in the bright than in the dim.
- Prefocus point and exposure settings are important
- There might be a benefit to taping down the lens focus ring.
- The camera will not go to sleep as long as the shutter is pressed, but may do so if using an intervalometer. Many models will send a half-press before the full press to wake up the camera, but not all.
- It may possible to use the IR remote (depends on brand/model) or WiFi tethering, but with the caution of that running those features increases the heat and power load on the camera.
- CiF may be less precise with a stopped-down manual aperture lens (e.g. M42). DOF applies to the focus trap as well as to the focus screen
- If the subject lingers, there might be a lot of near duplicate shots
- Consideration should be given to which of H, M, or L continuous rate settings suits your subject. The L setting may be best for many (most?) subjects.
- Flash may be your friend if fast recharge is in the mix. Remember heat and power implications associated for the flash. They shut off when overworked or when the battery dies.
- Framing wide with a longer than "normal" lens (allows greater distance to the subject) might be to your advantage as might shooting other than wide open. One can use a wide angle up close, but trapping may be more sensitive than is useful. It is best to test this out ahead of time.
- With fast subjects (e.g. birds or small mammals) they may move a fair distance after being focus-trapped and before the shutter fires.
- If using an intervalometer, be creative with its settings, say multiple short sessions with short interval between for a set number of repetitions.
- If you don't have time to thoroughly test your setup up, your likelihood of disappointment will be high.
Basic Example: ...in progress...
I think that about does it. :D
Steve
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Forum: Post Your Photos!
12-11-2020, 12:13 AM
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Forum: Lens Clubs
12-05-2020, 09:47 PM
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Forum: Pentax K-70
12-09-2020, 02:34 PM
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My Takumar SMC 300 mm had been collecting dust for ever so long, before I gave it a chance on the K-70. Focussing was not easy, but the result (1600 iso, 1/250, f 5.6) really made me happy..
Of course subject, a sleeping deer was lying in a beautiful pose and the post processing helped.
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Forum: Post Your Photos!
12-01-2020, 03:58 AM
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A dull dreich, early morning on a well known Loch. ;)
Here she is... safely back in the water, after her engine swap out. :)
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Forum: Photo Critique
11-29-2020, 12:58 PM
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Serengeti plains, Tanzania
Ilford SFX @ASA200 in Pyro PMK
Galerie FB Mutigrade printed w/o filter
on a Cold Light Enlarger
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Forum: Post Your Photos!
11-27-2020, 02:54 PM
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My lovely friend Zoe posed for me and we created some magic together. Edited in Photoshop.
Login ? Instagram |
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Forum: Post Your Photos!
11-09-2020, 03:11 AM
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Forum: Post Your Photos!
11-09-2020, 03:38 PM
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Maria Alm in Salzburg (state), Austria.
Stitch of 2 pictures. K-3 + Samyang 35mm f1.4
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Forum: Post Your Photos!
11-09-2020, 12:09 PM
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The Canadian prairies have a lot of tales to tell.
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Forum: Post Your Photos!
11-02-2020, 09:44 AM
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Forum: Pentax News and Rumors
10-26-2020, 06:23 PM
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You Tube
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src="https://www.youtube.com/embed/vDO0esYahRw?controls=1" allowfullscreen>
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Forum: Pentax DSLR Discussion
09-13-2020, 06:33 AM
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I'm not in the market for this as I am full frame but my guess would be in the $1400 - $1500 level. That leaves a nice space for an increase in the K-1 iii to the $2200 level. Hopefully with increased features both cameras will attract new buyers to the brand.
Is it the general feeling here that the new 21mm will be released at the same time? Would the pricing of this be along the lines of the existing 31mm -- approx. $700 - $800?
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Forum: Post Your Photos!
09-13-2020, 09:23 AM
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This is the usual view from home...
 IMGP1237-Pano by Miles Shaylor, on Flickr
This is the view for the last several weeks....
 IMGP2334-Pano-3 by Miles Shaylor, on Flickr
This is from the fires on the west coast. And I don't live in Washington. Or Oregon. Or even California.
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Forum: Digital Processing, Software, and Printing
08-10-2020, 12:42 PM
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New Darktable version (3.2.1) is out
They have done it again!
This time, and for the first time we are getting two major upgrades in one year – this one, 3.2 (in this case 3.2.1) and 3.4 around Christmas (the normal big upgrade moment)
This new version (an detailed information about what is new /corrected) can be obtain directly from GitHub: Release darktable 3.2.1 released · darktable-org/darktable · GitHub
Best regards,
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Forum: Post Your Photos!
08-15-2020, 09:34 AM
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I’v always loved snakes. We have just one which is mildly poisonous. Only thing havingenough poison in our country would be in mushroom, but then it is your own fault. Regardless, beautiful snake and well captured :)
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Forum: Post Your Photos!
08-08-2020, 09:25 AM
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While I mostly photograph natural landscapes, I also enjoy a lot working on cityscapes. In this post, I'll share with you three images of iconic man-made buildings, shot in Iceland during two different trips there. All images have been shot with Hasselblad X1D II, Hasselblad XCD 21mm with Formatt-Hitech Firecrest Ultra filters on the first two of them. First, the Gotham-city like Hallgrimskirkja in Reykjavik, Iceland. Exposure was 203 seconds:
Then, the iconic Sun Voyager in Reykjavik, Iceland. Exposure here was "just" 91 seconds:
And finally, a repost of Northern Lights over the Black Church at Budir, which I revisited, cropping the image a bit on the right side to de-center the church a bit more (a change inspired by a forum comment, actually). Exposure for this one was a meagre 23 seconds, camera was the original X1D and of course no filters for this one:
Thank you for viewing, best regards
Vieri
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Forum: Lens Clubs
07-30-2020, 05:16 PM
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Added some more exposure time to my Andromeda (M31) but not last year's shots as there I used a light pollution filter so when combining those in with the fresh ones caused a bad color shift. However I did take almost another half hours worth so here we have a bit under an hours worth of shots combined:
165x20s (astrotracer)
ISO 3200
F/3.5
Camera: K-3
Lens: SMC A* 400mm f/2.8 ED [IF]
Stacked in APP
Most processing in GIMP
Final touches in RawTherapee |
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Forum: Post Your Photos!
07-30-2020, 08:21 PM
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Summer is short in Quebec, we have a hot wave in july but in the morning lake are engulfed in fog giving great photos opportunities.
KP with DA 55-300 PLM
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Forum: Post Your Photos!
07-25-2020, 03:06 AM
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Hello all,
Few pics from my 3 days trek in the mountains. Perfect conditons, lot of flowers, amazing landscapes and light. The night where fresh under the tent, but the sky full of stars was totally worth it.
I hope it could push some of you to come visit.
The location:
few images
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