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Forum: Mini-Challenges, Games, and Photo Stories 5 Days Ago  
Thematic Show me your insects
Posted By Doundounba
Replies: 4,248
Views: 254,295
Apparently, collembola (or springtails) are no longer considered insects, but it doesn't seem inappropriate to post them here, IMHO...
Forum: Photographic Industry and Professionals 6 Days Ago  
Help: Commercial licensing for Facebook Ad?
Posted By Doundounba
Replies: 1
Views: 485
Well, let's not have everyone speak at the same time here! :confused:

FWIW, I ended up having to pull a price out of the air. Apparently the would-be user of my photo didn't like that number. He first responded enthusiastically, but since then he's ignored all my message over several days, so maybe his initial enthusiasm was actually sarcasm... I've remained polite and only sent a few queries, but have only received silence in response...
Forum: Photographic Industry and Professionals 05-09-2018, 05:19 AM  
Help: Commercial licensing for Facebook Ad?
Posted By Doundounba
Replies: 1
Views: 485
Hi all,

So I've been contacted by someone from a local ad agency about commercially licensing one of my photos. The use would be for a geo-targeted add on Facebook - people living within, say, 2km of a given point. This is the first time I've been approached to commercially license a photo. I am wondering:
  • What is appropriate pricing?

  • Is there a place where I can get a pre-made license? I am not fluent in legalese...

Any help/tips/advice would be greatly welcomed!
Forum: Flashes, Lighting, and Studio 05-09-2018, 04:59 AM  
Busted (& discontinued) power connector on Godox AD180 flash cable - Thoughts/Advice?
Posted By Doundounba
Replies: 11
Views: 541
Well, the Ebay sellers both replied that they can't get that cable anymore...



It has not - that's just wear on the QC label from repeatedly going in and out of a bottle holder on my backpack.



PM incoming! :cool:
Forum: Mini-Challenges, Games, and Photo Stories 05-08-2018, 06:25 AM  
Thematic Show me your insects
Posted By Doundounba
Replies: 4,248
Views: 254,295
So I guess everyone's OK with 2048-pixel wide "thumbnails" these days? I feel old...
Forum: Photographic Equipment for Sale 05-03-2018, 09:11 AM  
For Sale: ks 1 | fa 31 | da* 16-50 | da 35 f2.4 | da 50 f1.8 (price reduction 2nd time)
Posted By Doundounba
Replies: 8
Views: 977
Shutter count on the K-S1?
Forum: Photographic Equipment for Sale 05-03-2018, 09:08 AM  
For Sale or Trade: Free shipping - Vivitar series 105 2.5 PKA (aka Kiron, Lister Dine) macro
Posted By Doundounba
Replies: 51
Views: 4,280
Totally - this should have sold a long time ago...!
Forum: Pentax News and Rumors 05-03-2018, 08:35 AM  
The K-3 line will continue!
Posted By Doundounba
Replies: 539
Views: 46,113
Thanks for sharing your firsthand experience. As mostly a flash macro shooter, maximum detail in the ISO200-400 range is also what I'm after. This makes it more likely that I would choose a K-3ii over a KP should my K-3 bite the dust before the K-3iii shows up...



Same here. Perhaps the firmware could have a setting for the rise in the "aggressiveness" of noise reduction as ISO increases that would be similar to the setting for the auto ISO rise curve (slow/normal/fast), or, alternatively, a user-decided threshold ISO value below which to not apply NR at all...
Forum: Pentax K-3 05-03-2018, 08:18 AM  
K3 sample shots ... post here !
Posted By Doundounba
Replies: 9,341
Views: 1,099,472
Reposted from the Spiders thread... D-FA 100mm WR, 1.4X HD DA tele-converter, Raynox DCR-250, at MFD plus a ~16MP crop. Frame is a little under 7mm wide.


High Key Zebra Jumping Spider by Pascal Gaudette, on Flickr
Forum: Flashes, Lighting, and Studio 05-02-2018, 02:03 PM  
Busted (& discontinued) power connector on Godox AD180 flash cable - Thoughts/Advice?
Posted By Doundounba
Replies: 11
Views: 541
Thanks for you reponse. I perhaps could try to remove the piece that broke off from inside the flash. However, I'm worried about damaging it. And don't "they" say that the super powerful capacitors in flashes can retain a charge even when there's no power? I wouldn't want to inadvertently discharge such a capacitor into myself... :confused: But they say a lot of things, so is that fear unfounded?
Forum: Flashes, Lighting, and Studio 05-02-2018, 01:49 PM  
Busted (& discontinued) power connector on Godox AD180 flash cable - Thoughts/Advice?
Posted By Doundounba
Replies: 11
Views: 541
So it appears that I've busted the power connector on the cable linking my Godox AD180 flash to my PB960 battery pack. The adapter at the flash end of the cord broke off and stayed inside the flash. This is what it now looks like - notice the bare metal leads on the unplugged cable:



As you may or may not know, this flash has no internal battery, to you have to use it with the battery pack. I've been looking for a replacement cable, only to find that apparently Godox have changed the shape of the connector in their flashes! :mad: (Why would they do that?!) So, what I have is apparently the "Version 1" plug, and the cable with that connector appears to have become rarer than hen's teeth. I emailed a couple of Ebay sellers who made references to the V1 plug in their listings, but didn't show any in stock (example). We'll see how/if they answer. A store in Australia claims to have one old style cable in stock, but won't ship internationally...

As you can imagine, I'm not too keen to have bare metal electrical leads connected to a high power battery pack just dangling in my packpack. So for now, I'm inclined to use electrical tape to semi-permanently fix the cable to the flash and carry on that way while I can (the other end of the cable is fine as of now). But I'd like a more permanent solution. Am I out of luck? This was a fairly expensive flash! It would be rather annoying to have it rendered useless because of a missing cable, while the flash itself is still fully functional!

Soooo... Any thoughts/advice on what to do?
Forum: Mini-Challenges, Games, and Photo Stories 05-01-2018, 05:21 PM  
Thematic Spiders
Posted By Doundounba
Replies: 510
Views: 35,528
Shot a bit earlier today... D-FA 100mm WR, HD DA 1.4X & Raynox DCR-250.


High Key Zebra Jumping Spider by Pascal Gaudette, on Flickr
Forum: Pentax K-3 05-01-2018, 10:06 AM  
K3 sample shots ... post here !
Posted By Doundounba
Replies: 9,341
Views: 1,099,472
Forum: General Photography 04-27-2018, 07:54 AM  
What are your favourite YouTube photography channels?
Posted By Doundounba
Replies: 36
Views: 1,325
Great thread! I'll have to follow some of the recommendations above! For myself, so far:

- Simon Baxter: not as many vids or as regular as some others, but his photography is fantastic, IMHO, and I love his attitude... & Meg!
- Thomas Heaton: often mentioned upthread, and always enjoyable, though maybe a bit less since he got a rail, not sure why...
- Thomas Shahan: very few vids, but a Pentax shooter and my favorite macro shooter.

Honorable mentions to Sean Tucker, Gavin Hoey and TCS TV.

I have to say it's quite humbling to see the work of these photographers/cinematographers who manage to not only shoot great photos, but also make enjoyable short films about the process of shooting great photos!

p.s.: if you like portraiture, you might also enjoy this series of shorts on Arte (in French with English subtitles) by photographer Stéphane Lavoué about the story behind some of his famous people shots...
Forum: Mini-Challenges, Games, and Photo Stories 04-27-2018, 06:30 AM  
Thematic Flickr Explored
Posted By Doundounba
Replies: 625
Views: 45,401
This one hit Explore yesterday, in the 300s... :)


Exiting a Crocus [Explore 2018-04-25] by Pascal Gaudette, on Flickr
Forum: Pentax K-3 04-27-2018, 06:23 AM  
K3 sample shots ... post here !
Posted By Doundounba
Replies: 9,341
Views: 1,099,472
Thanks for the likes on the previous shot folks! Not often have I hit double-digit likes on a post, I think... :cool:



Thank you!



Thanks! Many insects have a trio of ocelli on top of their heads. They are often dwarved by the compound eyes that surround them (e.g. in flies), but when the compound eyes are further apart, they are easier to spot. Here are a couple of the more obvious examples from older, previously posted, K-3 shots, just because... :o


Hello Beautiful! (ID?) by Pascal Gaudette, on Flickr


Cicada Portrait Stack by Pascal Gaudette, on Flickr
Forum: Pentax K-3 04-25-2018, 05:29 AM  
K3 sample shots ... post here !
Posted By Doundounba
Replies: 9,341
Views: 1,099,472
First spring shooting for me yesterday! The stalwarts: D-FA 100mm WR plus Raynox DCR-250, here with Godox AD180 off-camera flash.


Exiting a Crocus by Pascal Gaudette, on Flickr
Forum: Mini-Challenges, Games, and Photo Stories 04-25-2018, 05:24 AM  
Thematic Show me your insects
Posted By Doundounba
Replies: 4,248
Views: 254,295
Finally looking like spring over here, so I can start shooting (and showing) insects again... :cool:


Exiting a Crocus by Pascal Gaudette, on Flickr
Forum: Sold Items 04-23-2018, 07:32 PM  
For Sale - Sold: SIGMA 17-70mm F:2.8-4.5 DC MACRO
Posted By Doundounba
Replies: 2
Views: 324
It's a fine lens, but as per the photos, this is actually the F/2.8-4.5 version (also sometimes referred to as V1, as it was the first 17-70mm Sigma did). It has very good close focus abilities - better than later versions I believe... It's quite a versatile lens, and IMHO very capable. Good luck with the sale.
Forum: Pentax News and Rumors 04-23-2018, 08:33 AM  
Laowa 100mm F2.8 2:1 Macro lens for k-mount
Posted By Doundounba
Replies: 44
Views: 3,000
Whoa! I go away for a few days and... BAM! New lens I really want! :cool:

If this has mechanical aperture coupling, I'm definitely buying. If it has auto-aperture (ie lever plus A-contacts), I'm so definitely buying! 2:1 magnification in a 100mm lens is killer. I'm not super hot on internal focus though, because it means the effective focal length at MFD is likely to be quite a bit less than 100mm, which will lessen the amount of (additional) magnification I can reach by putting my trusty Raynox DCR250 on it... Still, native 2:1 while preserving infinity focus! Give me aperture coupling (and good glass, obviously), and I definitely want it.
Forum: Photographic Industry and Professionals 04-21-2018, 08:58 AM  
SmugMug Swallows Flickr
Posted By Doundounba
Replies: 141
Views: 4,697
Ho hum. I think I'd rather Flickr be owned by SmugMug than Verizon, but time will tell. For now, the whole Flickr team is moving over, so it's very much business as usual. I imagine eventually my Flickr account will decouple from my Yahoo account, which will be a bit of a bother, but no biggie...
Forum: Pentax Price Watch 03-27-2018, 07:49 PM  
15% off at eBay-Max $50-Until 8PM PT 03/27/18-Minimum $25 purchase
Posted By Doundounba
Replies: 8
Views: 471
Just saved a bit on a small purchase, but hey, $5.85 is $5.85! So thank you, bladerunner6. I would not have seen this deal had you not posted. :cool:
Forum: Pentax Camera and Field Accessories 03-26-2018, 12:15 PM  
Moman Mini Tripod - Greatest $30 Purchase in Last 5 Years!
Posted By Doundounba
Replies: 51
Views: 2,745
Mine - labeled Koolehaoda MT-01 - arrived today (on the slow boat from China). Got just the tripod without head. Looks very solid and multipurpose. Nice that it came with some fairly solid looking straps too. Thanks for the pointer, UserAccessDenied! :cool:
Forum: Pentax News and Rumors 03-26-2018, 06:25 AM  
The K-3 line will continue!
Posted By Doundounba
Replies: 539
Views: 46,113
Alright, I will answer to this exactly once.

1) "photographers are not interested in exact subject magnification"
  • Many macro photographers, entomologists and nature lovers are interested in exact subject magnification, since that is what allows one to determine subject size.

  • The point is that some people (and sometimes lens manufacturers) are being dishonest about their figures. There are not five definitions of magnification in macro photography. There is one: the ratio of the size of the image produced on the sensor relative to the size of the subject. 17.5mm long subject fills your 17.5mm wide m4/3 sensor is 1:1. If you are stating another number, you are at best mistaken, at worst dishonest.

2) "To get an image like 1:1 maginification [sic] on 4/3, you'll need a 2:1 lens on FF"
  • Hey, you actually used magnification in this sentence! I thought you weren't interested in magnification or its exact definition?

  • This is the equivalence issue. If you're shooting 1:1 on a 16MP m4/3 camera, you're getting 16MP on a 17.5mm subject. Shooting 2:1 on a 36MP full frame, you're getting 36MP on the same subject! That's not the same result at all! A more meaningful comparison is to ask how much magnification you need to get the same number of pixels on the same size of subject. (This assumes pixel-sharp images and discounts things like noise and DR, and so is not without issues either, but I contend it is at least more meaningful than your own fairly ludicrous statement.) My math is a little rusty, but I believe the answer to that is 1.33:1. Shooting 1.33:1 on a 36mp full frame camera will give you a 16MP cropped image that is 17.5mm wide. So, to get back to your statement, to obtain an image roughly like 1:1 magnification on a 16MP m4/3 camera, you'll need a 1.33:1 lens on a 36MP FF camera. Comparing other pixel count cameras, or other formats entirely, is left as an exercise to the reader.

3) And as to working distance, now you need to take focal length into consideration as well, in order to make a meaningful comparison.


This doesn't mean you can't shoot fantastic macros on m4/3 - because you definitely can. It doesn't even mean that there is no advantage to shooting high magnification, low-iso, flash macro on a more pixel-dense sensor. It just means that definitions matter, and people (or lens manufacturers) claiming inflated magnification figures based on the crop factor of their camera are mistaken at best, and dishonest at worse.
Forum: Pentax News and Rumors 03-25-2018, 06:58 AM  
The K-3 line will continue!
Posted By Doundounba
Replies: 539
Views: 46,113
Heheh - funny! "Except for these two HUGE differences, there wouldn't be any difference!"

Which is to say that even if there existed a 52MP, 8fps shooting, $5k+, K-WOW camera, I'd still be hoping for a K-3III in 2018! :o

Yes, I do agree with that, and I've had that very "conversation" with macro shooters claiming to be shooting "2:1 magnification" when they're actually using a (standard, Olympus) 1:1 macro lens on their m4/3 bodies. Sometimes people will do anything to make themselves or their photos (or their lenses, if they are lens manufacturers) seem more impressive. At least in macro photography, the definition of magnification is pretty clear - even Olympus doesn't claim their 60mm macro as a "2:1" lens - so the precision of the definition gives me something solid to beat them over the head with rely on. :o
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