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Forum: Sold Items 03-16-2008, 02:34 PM  
For Sale - Sold: FS: Sigma 400mm APO (5.6), $400 NYC
Posted By LarryDeBx
Replies: 4
Views: 1,934
Is this lens autofocus ?

Larry
Forum: Pentax SLR Lens Discussion 03-07-2008, 08:45 PM  
Searching Sigma 100-300 f4 for Pentax!! Who sells?
Posted By LarryDeBx
Replies: 4
Views: 2,785
Here's one on eBay, from a dealer that I've heard is reliable, although somewhat pricey.

SIGMA APO 100-300mm f/4 EX DG HSM for Pentax K mount - eBay (item 380003527121 end time Apr-04-08 23:04:44 PDT)

Larry
Forum: Sold Items 02-23-2008, 10:02 AM  
For Sale - Sold: Garage Sale
Posted By LarryDeBx
Replies: 9
Views: 1,833
PM sent on the F35-70.
Forum: Flashes, Lighting, and Studio 02-03-2008, 07:27 PM  
Macro shooters: Mini ballhead on flash bracket...help!
Posted By LarryDeBx
Replies: 9
Views: 3,460
The bushing adaptor I think you're looking for, as listed by Adorama (but out of stock)

NPTRB Adorama Tripod Bushing 1/4-20 to 3/8" (1)

And a flash bracket with a ballhead. I have it. It holds the 540 firmly at any desired angle, altho with a macro like the Kiron 105mm, the setup can get a bit unwieldy for hand-holding. But nice in that you can get lighting from above and to the side, precisely aimed.

FLASHGRIFF Novoflex Flash Bracket with Padded Grip, Strap and Ball Head.
Forum: Sold Items 02-03-2008, 04:45 PM  
For Sale - Sold: FS: 2 High Speed 1GB SD mermory
Posted By LarryDeBx
Replies: 1
Views: 1,671
PM sent.

Larry
Forum: Sold Items 01-27-2008, 07:03 PM  
For Sale - Sold: Lenses for Sale
Posted By LarryDeBx
Replies: 12
Views: 3,190
PM sent on the Tokina.
Forum: Sold Items 01-19-2008, 07:40 AM  
For Sale - Sold: FS: K10D kit, 14mm, 50mm Macro, 400mm
Posted By LarryDeBx
Replies: 5
Views: 2,113
Steven:

I have contacted you on the Tokina 400mm.

Larry
Forum: Pentax Camera and Field Accessories 10-03-2007, 08:18 PM  
LCD PROTECTOR ? Found it !!!!
Posted By LarryDeBx
Replies: 5
Views: 2,207
What is the model number of the Delkin you recommend for the K10?

Thanks,
Forum: Pentax SLR Lens Discussion 09-29-2007, 08:17 PM  
New 18-200 from Pentax?
Posted By LarryDeBx
Replies: 50
Views: 6,484
Considering that this lens is being classified as a DA, would this mean that the lens would have the quick shift focus feature of the 50-200 and the 18-55? The Tamron version doesn't have this ability.

If so, I might be seriously considering putting my two day old Tamron 18-250 back in the box, and returning it. On my other DA's the quick shift is very handy, especially in low light where there's a lot of hunting - gets the focus close enough so that the AF can usaully lock in quickly.

Larry
Forum: Photographic Technique 09-23-2007, 06:13 AM  
EV+ in Av mode with flash ?
Posted By LarryDeBx
Replies: 4
Views: 1,534
Wow ! So concise. What I have been clumsily aiming towards for quite a while - now I have a clear target.

MANY thanks (but it was obvious anyway - LOL)

Larry
Forum: Pentax DSLR Discussion 03-07-2007, 02:14 PM  
KatsEye fitting instructions
Posted By LarryDeBx
Replies: 4
Views: 1,725
Akcelik:

Check your private messages. I have sent you the instructions.
Forum: Pentax DSLR Discussion 03-03-2007, 09:58 PM  
View-finder grid on K10D
Posted By LarryDeBx
Replies: 5
Views: 1,687
Or you can check out the Katzeye focusing screens, which offer a variety of [optional] grid lines, as shown here:

Custom Grid Crop Lines @ KatzEyeOptics.com

I have the rule of thirds grid, and like it very much.

Larry
Forum: Pentax DSLR Discussion 03-01-2007, 05:46 PM  
cleaning the focusing screen
Posted By LarryDeBx
Replies: 28
Views: 6,185
FWIW, Pentax makes a "pincette" tool which it includes with all of its optional focusing screens. It appears to be a combination tool to spring the retaining clip and hold the screen by its tab.

AFAIK, Pentax does not sell it separately. So this past weekend I ordered an old PZ-1P screen from Cameta for $9.95 to get this tool (plus a nice included case for storing either my Katzeye or original screen). I'll be discarding the PZ-1P screen unless someone wants it.

Hopefully, this pincette should make removal, exchange and cleaning of the focusing screen a lot easier.

Larry
Forum: Pentax DSLR Discussion 03-01-2007, 02:40 PM  
cleaning the focusing screen
Posted By LarryDeBx
Replies: 28
Views: 6,185
I had replaced the focusing screen of my K10D with a Katzeye screen, and upon reassembly I had a piece of black lint perpendicular to the split of the split prism circle, practically the diameter of the circle. Any other part of the screen, I probably would have left it alone, but here it was totally unacceptable.

So I took the screen out a second time, blew it off, and reassembled. The lint was still there. Took the screen out a third time, blew it more (and on both sides), reassembled, and everything was now AOK.

Glad I did it, and seems to be not particularly risky if you're careful.

Larry
Forum: Pentax DSLR Discussion 12-11-2006, 06:40 AM  
Optical vs. digital preview on K10D
Posted By LarryDeBx
Replies: 8
Views: 2,365
To get a pretty good idea what your DOF will be, you can also take a look at the DOF table at the site listed below. You can plug in any focal length; choosing any Pentax DSLR (or other DSLR) should give you equivalent results.

Depth of Field Table

Larry
Forum: Pentax DSLR Discussion 12-08-2006, 11:44 AM  
Optical vs. digital preview on K10D
Posted By LarryDeBx
Replies: 8
Views: 2,365
For quite a while I thought digital and optical preview were merely superfluous "features".

I now find that I use digital preview not infrequently. Not primarily for depth of field, but rather to detect highlight clipping, and to a lesser extent, the effect of WB adjustments. Rather that fill up a card with test images (and hours later who remembers which was the test and which was the true shot), in difficult situations I use this mode (when so inclined and time permits) to zero in on the settings I'll be using for a shot or several shots.

So I have come to find digital preview to be quite handy.

On the other hand, the utility of optical preview still escapes me.

Larry
Forum: Pentax DSLR Discussion 12-07-2006, 10:54 AM  
Tethered Shooting
Posted By LarryDeBx
Replies: 22
Views: 9,833
You seem to be right. Remote Assistant does not presently work with the K100D.

I got it beyond transfer mode by tapping on the shutter button, and I was able to take a pic, but nothing registered on the computer monitor, nor was there any indication that the camera was in communication with the computer.

I was skeptical, that's why I labelled the other post a "rumor".

Larry
Forum: Pentax DSLR Discussion 12-07-2006, 09:07 AM  
Tethered Shooting
Posted By LarryDeBx
Replies: 22
Views: 9,833
I heard a rumor on another forum that the Pentax Remote Assistant, as offered for the *istD, will also work on the K100D. [Available from Pentax online as software for the *istD]

Although it is claimed in the post to work only in RAW mode, it is also claimed to work with USB 2, so reasonable speed seems possible.

Haven't tried it yet, but certainly seems interesting. Maybe it will even work with the K10D ??? But if so, why is Pentax not promoting it ?

Larry
Forum: Pentax DSLR Discussion 12-05-2006, 01:49 PM  
RAW processing for K10D???
Posted By LarryDeBx
Replies: 23
Views: 3,637
1. My comments specifically applied to DNG's vs. PEF's from the K10D, ONLY. AFAIK, ACR cannot [yet] [fully] utilize k10D specific information in the DNG file. Thus the possible differences in final results, DNG vs. PEF, with the K10D.

2. I agree that no DNG support is a poor marketing choice, if Bibble's goal is to increase as rapidly as possible the gross size of its user base.

But for an full featured, near zero learning curve RAW processor, that gives great results, Bibble is as good or better than anything out there. I personally would gladly sacrifice DNG compatability for the power of this program. I highly recommend the program.

Larry
Forum: Pentax DSLR Discussion 12-05-2006, 09:40 AM  
RAW processing for K10D???
Posted By LarryDeBx
Replies: 23
Views: 3,637
I stand corrected.

A few months ago, there were some hints that DNG would be included in the next major upgrade, but it seems now that Bibble has no plans to include DNG support.

They justify this decision by their statement that DNG's do not provide all the camera specific information that RAW does. And therefore, use of DNG's would yeild a somewhat inferior result. This conclusion seems to agree with the [subjective] impressions of several posters on the other forum who have compared DNG from ACR and LightRoom with RAW from either Silkypix or Pentax Lab (for the K10D).

Larry
Forum: Pentax DSLR Discussion 12-04-2006, 06:05 PM  
RAW processing for K10D???
Posted By LarryDeBx
Replies: 23
Views: 3,637
I've been using Bibble Lite for my K100D, and plan to soon be using it for my K10D. It is the perfect compromise between ease of use/quick learning and features/performance. It is also very fast, and has batch capabilities.

They offer a 2 week free trial, and you can probably get a 2 week extension if you request it (I did). The cost is $69.00. It is considerably more powerful than ACR (IMO), and if no editing is required, Bibble is generally all that I need for PP'ing. See:
Bibble Labs - Professional Photo Workflow Software

In terms of the question of K10D support, they issued the following statement on November 20:
"just as a heads up, there won't be an update untill next month....Holidays and all that."

Presuming that the "Holidays" were Thanksgiving, it should be able to handle K10D PEF's any day now.

One caveat: Its present version, 4.9, does not work with DNG's. It is rumored that the next major update, to 5.0, will.

Larry
Forum: Pentax DSLR Discussion 12-03-2006, 10:11 AM  
please help.... tips for bad handshake
Posted By LarryDeBx
Replies: 10
Views: 3,418
Assuming you have the K10D, my single best suggestion is to get the D-BG2 Grip. It gives extra weight, which increases the inertia of the camera, and provides more surface area so you can optimally position your fingers.

I have also found that if I push in, towards the camera with both hands, my stability tends to be increased. [Here the grip also proves very useful]. I make my face the third bracing point, with moderate pressure against it.

And most importantly, practice. I do indoor shots of my printer, seeing how sharp I can get the Epson insignia, at increasing Tv's. Sooner or later you will find a style that fits in well for YOU, BEFORE that once in a lifetime shot.

Finally, a sharp picture becomes the perfect excuse for ramping up that exercise schedule, barring any medical contraindication.

Take a look at a thread on handshake and the K10D to which I have posted, on the "other" forum. I think you will be impressed, and inspired.

K10D and SR: it's insane! [Page 1]: Pentax SLR Talk Forum: Digital Photography Review

BTW, I too have a medical problem that affects my hands, which is why I have focused on the handshake issue.

Larry
Forum: Pentax DSLR Discussion 12-03-2006, 09:15 AM  
Macrophotography Ring Light
Posted By LarryDeBx
Replies: 5
Views: 2,913
EVERYTHING considered, I think you're making a good choice. Pentax is no longer only a good compromise; it is becoming a good choice in and of itself.

And as far as lighting goes, I would most strongly recommend that you go for broke and get the AF540FGZ flash.

I bought the AF360FGZ originally, because I couldn't see any point in the extra expense for the 540, but now my 11 y/o neice is using the 360 (quite happily, on my K100D that I think she knows will be her Xmas present), and I am grateful for every bit of performance the 540 can deliver, ESPECIALLY for macros.

I also want to emphasize that Pentax appears to be a rapidly rising star - the K10D looks like it will be nothing short of a blockbuster. Both Sigma and Promaster are only a hair's width away from having a P-TTL ring flash on the market, should they be properly motivated. With accelerating Pentax sales, it seems very likely that these products (and others) will be hitting the markets in the very near future.

Larry
Forum: Pentax DSLR Discussion 12-03-2006, 06:58 AM  
Macrophotography Ring Light
Posted By LarryDeBx
Replies: 5
Views: 2,913
In common usage, a 'ring light' provides continuous illumination, as with SR Inc's Digi-Slave series of LED macro lights, while a 'ring flash' provides a burst of illumination synchronized to the opening of the shutter. But I've also seen overlap between these two terms.

I made to distinction in my response because I assumed that you wanted information with respect to the more common 'ring flash'.

And yes, it is unfortunate that neither Pentax nor any third party provides a fully functioning P-TTL ring flash, but it seems that Pentax is just starting to get its act together on the accessory end, and ring flashes are for a rather niche market. After all, Pentax doesn't even have lenses longer than the DA50-200, although, per their "Roadmap" this deficiency is already slated to be resolved in the near future. They have a lot of catching up to do on the accessory end.

As others have said, if you absolutely require long glass ASAP, Pentax is not your best choice at the present moment. Ditto if you absolutely require macro flash (IMO). But otherwise, its a great system, and Pentax seems to be gaining momentum rapidly.

Larry
Forum: Pentax DSLR Discussion 12-02-2006, 11:55 PM  
Macrophotography Ring Light
Posted By LarryDeBx
Replies: 5
Views: 2,913
First of all, I will assume you meant ring 'flash', not ring 'light', a whole different ballpark.

Pentax does not offer a ring flash at this time, altho some vendors (like B&H I believe) still have stock of the AF140C. Unfortunately, the AF140C is TTL, and with Pentax digitals that have only P-TTL (e.g. the DL, K100D, K10D), you are limited to manual mode. For macros that's not too bad, but it's still a pain, and may necessitate ND filters, especially close focused with the shorter focal length 50mm macro lenses. AFAIK, Pentax is the only major manufacturer without a ring flash.

Third party ring flashes have similar limitations. Sigma says it will have the EM-140 ready for Pentax P-TTL "soon", and Promaster, through a recent communication to me, has said that their 5432 module for the Macrolume is not performing well, and will soon be replaced with a new module with new circuitry similar to that on that on their 7500 series, which they claim works very well under P-TTL.

Please note that the Promaster unit will not support high speed synch, while the Sigma unit does.

In any case, I have the older Pentax AF080C ring flash, a Starblitz 1000 ring flash, and a Canfield/Nikon Macro Twin Flash, and I 'm not particularly pleased with any of them.

What I do like is: The AF540FGZ with a Lumiquest Bouncer, at 45 degrees tilt up, set to high speed synch. Sounds complicated, but really quite simple. And it gives those shadows that avoid the flat, lifeless look of a ring flash. And it also lets me use f/19 for decent DOF, with moderate ISO's, and shutter speeds below 1/500, to neutralize most all shake when hand-held. Can't ask for much more.

Btw, I've been mainly using the Pentax DFA 100mm/2.8, but I also have the Pentax DFA 50mm/2.8, and the incredibly sharp A 50mm/2.8 (but the latter only goes to 1:2). The 100mm lens is far more suitable to anything that is alive. I am eagerly awaiting the Sigma 180/2.8 macro; it's been on back-order for over two months.

Larry
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