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Forum: Pentax SLR Lens Discussion 07-21-2008, 06:10 AM  
Now that the Pentax 17-70 is out... what carry around lens??
Posted By Pentakun
Replies: 9
Views: 2,496
I have found a used one in fact, planning on getting it tomorrow. I am going to bring my own K10D to see if the AF works properly, etc. etc. on my own camera.

Sorry my original post (which I reread) has some typos.


It should have read "The Pentax new is about $200 more than either a new Tamron or Sigma; or $300 more than either of the two when buying used."

As was mentioned, I wonder if Pentax would outshine the Sigma, and justify the $300 - $200 price difference? I guess we all wondering and it's too soon to tell since it hasn't even come out yet.

I'm planning on getting the Sigma now, since the price is right and I want to take it on vacation from Aug 1. After that, I can study the Pentax version.
Forum: Pentax SLR Lens Discussion 07-20-2008, 07:11 AM  
Now that the Pentax 17-70 is out... what carry around lens??
Posted By Pentakun
Replies: 22
Views: 2,763
Yes, I mistakenly posted on this topic without knowing. I apologize for that and have re-posted it under SLR Lens.

In the meanitime, however, your comments here have been a good start. Thanks
Forum: Pentax SLR Lens Discussion 07-20-2008, 07:08 AM  
Now that the Pentax 17-70 is out... what carry around lens??
Posted By Pentakun
Replies: 9
Views: 2,496
(Sorry this got posted to the SLR Film Thread. I am reposting here)

I am very ready to upgrade from the 18-55 kit lens and have been considering either the Sigma 17-70 or Tamron 17-50, favoring the Sigma because of the longer zoom. But now that the Pentax 17-70 is out, I am wondering if I should get that? Price wise the Pentax is A LOT more, but maybe worth it. The Pentax new is about $200 more than either a new Tamron or Sigma; or $200 more than either of the two.

Just wondering what any of you might have to say about these lenses and which, if any, would you suggest for a carry around, all factors considered.

Appreciate the feedback.
Forum: Pentax SLR Lens Discussion 07-19-2008, 11:31 AM  
Now that the Pentax 17-70 is out... what carry around lens??
Posted By Pentakun
Replies: 22
Views: 2,763
I am very ready to upgrade from the 18-55 kit lens and have been considering either the Sigma 17-70 or Tamron 17-50, favoring the Sigma because of the longer zoom. But now that the Pentax 17-70 is out, I am wondering if I should get that? Price wise the Pentax is A LOT more, but maybe worth it. The Pentax new is about $200 more than either a new Tamron or Sigma; or $200 more than either of the two.

Just wondering what any of you might have to say about these lenses and which, if any, would you suggest for a carry around, all factors considered.

Appreciate the feedback.
Forum: Pentax SLR Lens Discussion 07-19-2008, 11:18 AM  
Sigma 70mm Macro or Tamron 90mm Macro?
Posted By Pentakun
Replies: 19
Views: 33,021
Hi. I got the lens last night and took a few quickie shots of my dog to test it, shooting indoors at night with no flash on my K10D.

I was amazed at how great the pics came. They were surprisingly sharp and that was just point and shoot and playing around and not seriously "trying" (Not worth showing here, by the way) The clarity was very impressive. I never knew my dog was so photogenic;)

I think I will be very happy with this lens.

And for my next, I plan to go longer, with the 180, so the 70 fits nicely in my lens roadmap.

I'll try to post a few soon.
Forum: Pentax SLR Lens Discussion 07-19-2008, 10:58 AM  
Sigma 70mm Macro (my 1st shots)
Posted By Pentakun
Replies: 51
Views: 12,214
Think of what you can do when you get used to it.

It's great to see shots from this lens. I actually got mine yesterday but haven't uploaded anything or had time to take many shots. But, from your pics I can tell it is razor sharp and that is what persuaded me to get it over 105 and the Tamron 90.
The clarity is a real selling point.

It seems like a very fun lens. Last night, I quickly grabbed a few shots indoors at night without flash of my little doggie and I was amazed at the results. He doesn't even look as good in real life. :lo They came out crystal clear and I wasn't even trying.

Great to see such a wonderful lens.
Forum: Pentax SLR Lens Discussion 07-17-2008, 06:44 AM  
Sigma 70mm Macro or Tamron 90mm Macro?
Posted By Pentakun
Replies: 19
Views: 33,021
about the Sigma 70. It looks like I'm headed in that direction, finally making a commitment. I've located one and am picking it up tomorrow. I am anxious to try it out. I hope even I can get some kind of decent reselts.

Thanks again
Forum: Pentax SLR Lens Discussion 07-16-2008, 09:08 AM  
Sigma 70mm Macro or Tamron 90mm Macro?
Posted By Pentakun
Replies: 19
Views: 33,021
It's going on months and I haven't been able to make up my mind about which of these to buy. I have done searches here and on other sites in reading up on these. I am hoping that you experts might be able to give some excellent advice (pros and cons) to this amature. I am mostly looking for clarity, sharpness, and good bokeh, among other things.

For macro I plan to shoot watches, flowers, leaves, natural objects, and possibly bugs (if they are friendly:lol:).

Also, would either of these 2 lenses (70 vs. 90) be considered better for regular snapshots and portraits?

I have tried both on a Pentax 20D & a 200D at stores. I think the Sigma has better overall glass and build and it seemed to AF faster with less hunting. It, however, is bulkier and 100gr heavier.

From what I can decipher in one review, the Tamron had better test results. But is there any real-life difference in an MFT Resolution of 2181 at F8 (Tamron) vs 2064 (Sigma)? Maybe the difference is totally insignificant to the naked eye, but since I'm an amature, I am not sure about this.

At one store, the salesperson said there should be no indicision what so ever, as Tamron is far superior, espcially when it comes to bokeh. But the Tamron has been around for a lot longer and has gained a loyal following. That said, I think after the Sigma has been out a while longer it too will also gain a nice following. I have read very nice reports from new owners. And in photo comparisons I have seen, my taste preference was actually with the Sigma, which is the one I am favoring more and more it seems.

I imagine I would be happy with either, but I am curious as to what some of you might have to say about these two.

Thanks for any input.
Forum: Pentax SLR Lens Discussion 06-15-2008, 02:20 AM  
Do you have lenses with focusing problems in digital but not with film?
Posted By Pentakun
Replies: 5
Views: 1,698
It is interesting about this and what the world of digital has done to increase our concerns with focus issues, making them far, far more in-depth than they were with film.

Well, at least I am glad I got the 1.7 that still works fine. I can't see spending $85 on the 1.4. (I guess I could try to unload it cheap because of the focus issue. Or else I could see how much I could get with it as a "trade in" when buying something else. )

Thanks
Forum: Pentax SLR Lens Discussion 06-15-2008, 02:15 AM  
Which Macro lens for watches, flowers, nature/natural objects?
Posted By Pentakun
Replies: 6
Views: 3,523
I really appreciate the feedback. Hummm. It looks like there is no "one" macro lense that will do the tricks, so the best thing is to start saving up for a couple or three. Hummm. Now what I am thinking is getting the Sigma 70mm to start, then the Pentax 35mm Ltd. Edition, and then shoot for a longer 180 or 200mm for instance. I'll need to save up and be patient and read more about Macro Photography too.

Thanks a lot.
Forum: Pentax SLR Lens Discussion 06-12-2008, 09:53 AM  
Which Macro lens for watches, flowers, nature/natural objects?
Posted By Pentakun
Replies: 6
Views: 3,523
I am pretty much convinced that I will get the Sigma 70mm Macro because of its rave reviews and the quality of its IQ. It just sounds like a fantastic lens. However, I am not sure if this focal length would be ok for taking macro photos of watches, flowers, nature, naturual objects (and maybe bugs).

So, before I buy, I wanted to check the pros and cons with you as to whether this lens (compared to the Sigma 105mm, Pentax 100mm, or the Tameron 90mm macro, for example) will suffice to fit my needs or would I regret buying a 70mm?

I already have a FA 50 1.7, so am not interested in a lens in that range.

Plus, the next purchase after this one will be the Pentax 35mm Macro Ltd.

Thanks for any advice and comments you experts can share.
Forum: Pentax SLR Lens Discussion 06-12-2008, 09:19 AM  
Do you have lenses with focusing problems in digital but not with film?
Posted By Pentakun
Replies: 5
Views: 1,698
I have had a FA 50mm 1.4 for years. You may call me crazy (blame the LBA), but I recently bought a FA 50mm 1.7 used from an auction site because I have read in several places that this less expensive/discontinued less seems to perform better with digital than the 1.4 lens.

I noticed focusing problems with the 1.7 and took both lenses and camera to Pentax, complaining that the cheap lens didn't focus right and "could you please have a look". I thought, "Serves me right for buying a cheapo discon lens site unseen through an auction."

Well, the funny (not so funny ha ha really) is that my K10D had a back focus problem that needed to be repaired for $110 and the 50mm 1.4 had a front focus problem that would cost $85 to repair because it doesn't work with digital but focuses perfectly on film cameras. And the cheaper 1.7 focuses beautifully in both film and digital. What was happening was that the back focus on the K10D was cancelling out the front focus of the 1.4. so, that's why it seemed the 1.7 was no good. Neeedless to say, I did not spend the $85 on a lens I had intended to get rid of. :mad:

Anyway, I was wondering if you have experienced a similar problem with any of your lenses?
Forum: Pentax SLR Lens Discussion 04-21-2008, 06:58 AM  
Questions about the new DA35 Macro Limited
Posted By Pentakun
Replies: 5
Views: 1,793
I appreciate the feedback. It sounds like this lens is a go with me. After all, LBA is just starting, so why not get it, right?

I plan to study lenses in the range of about 100mm or so with macro function. That will be my next area to cover.
Forum: Pentax SLR Lens Discussion 04-19-2008, 10:30 AM  
Questions about the new DA35 Macro Limited
Posted By Pentakun
Replies: 5
Views: 1,793
I am a newbie and interested in this lens because I want a prime in this focal length and plan to do macro shots (flowers, watches, nature, maybe bugs), so it seems a perfect for many reasons (IQ, features, price, etc). I also plan to get a longer focal lenth macro too.....

However, before I buy, I have some questions I was wondering if you could answer to help this newbie out.

1) The pics in macro mode I have seen here have really shallow depth of field. It is possible to get macro shots with a little more depth of field with this lens? (Examples would be appreciated)

2) Is a focal length of 35mm best for taking macro shots of watches?

3) (Please bear with me on this one) The DA35 shots among the examples in the following thread look the least attractive to me. They are dark, don't seem sharp, etc.

https://www.pentaxforums.com/forums/218664-post59.html

While the M40@f/2.8 shots looks the best in my eyes, they were rated "worst". I'm not sure why or what I am supposed to be looking at. But if my eyes are telling me this, I am wondering if I should foget this lens and find a simple prime around 35mm without macro.

Anyway, thanks for any thoughts on this.
Forum: Pentax SLR Lens Discussion 04-18-2008, 09:10 AM  
I've done preliminary testing. Now what can I do about Back Focus?
Posted By Pentakun
Replies: 1
Views: 1,757
I'm a newbie and I bought a FA50 f1.7 on an auction to go with my K10D. The lens has been well taken care of and I couldn't believe it was used, from the looks, anyhow. BUT, with my initial testing, I see it back focuses in AF compared to another lens I used in comparison, so I don't think it's the camera. (Could be a bit of both).

Manuual focusing worked better but not perfect. The areas that came into the actual focual point are really sharp, so I don't think the lens is faulty overall. I will test it more over the weekend to see how it works in more settings.

But my first question: Is there anything I (or even Pentax) can do about this? I hope so.

(Sorry if this has been discussed elsewhere. But in doing searches here, the posts I found mainly covered how to test rather than what do when there is an issue.)

Thanks for any advice.
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