Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
12-26-2019, 08:22 AM   #1
Pentaxian
mbukal's Avatar

Join Date: Jan 2011
Location: zagreb
Posts: 659
FF lens with limited budget - of legacy

with a limited budget, of legacy which lens would be best for use on the pentax K1, WR doesn't matter, sharpness is essential throughout the frame as well as across the range, always use lens hood, very often use rated aperture, speed and focus accuracy, lens resolution is also important because of the frame cut, 4 lenses are included in the short circle:

1.Toxina ATXPROSV 28-70 / 2.8
2.Tamron 28-75mm F2.8 AF XR Di LD Macro SP
3.Sigma 24-70mm F2.8 EX DG Macro
4.Pentax-D FA 28-105mm F3.5-5.6 ED DC WR


has anyone experience in parallel with at least two lenses of the above


Last edited by mbukal; 12-26-2019 at 08:33 AM.
12-26-2019, 08:47 AM   #2
Loyal Site Supporter
Loyal Site Supporter




Join Date: Nov 2015
Photos: Albums
Posts: 4,186
When you say “rated aperture”, are you saying you plan to use the lens wide open much of the time? If so, how much credit would you give a f2.8 lens that had less resolution at f2.8 than a F4 lens if they were the same at f4? Is the resolution more important than the maximum aperture?

And when you say “frame cut”, does that mean you intend to crop the image significantly?

-Eric
12-26-2019, 09:53 AM - 3 Likes   #3
Pentaxian




Join Date: Jul 2011
Posts: 2,380
Save for Pentax 24-70 or go 28-105. Pentax cameras deserve Pentax glass. Sounds strange but you avoid all kinds of trouble.
12-26-2019, 09:55 AM   #4
Site Supporter
Site Supporter




Join Date: Jun 2009
Location: Rivesville West Virginia
Photos: Gallery
Posts: 236
QuoteOriginally posted by mbukal Quote
with a limited budget, of legacy which lens would be best for use on the pentax K1, WR doesn't matter, sharpness is essential throughout the frame as well as across the range, always use lens hood, very often use rated aperture, speed and focus accuracy, lens resolution is also important because of the frame cut, 4 lenses are included in the short circle:

1.Toxina ATXPROSV 28-70 / 2.8
2.Tamron 28-75mm F2.8 AF XR Di LD Macro SP
3.Sigma 24-70mm F2.8 EX DG Macro
4.Pentax-D FA 28-105mm F3.5-5.6 ED DC WR


has anyone experience in parallel with at least two lenses of the above
i have tried the sigma 24-70 on the K1 and when it works properly it is sharp even wide open and the screw drive focus is accurate but it has communication problems with the K1 a majority of the time. also have the DFA 28-105 and it is an excellent lens for the money. it punches way above its weight and was designed specifically for the new full frame. hope this is helpful.

12-26-2019, 11:27 AM - 1 Like   #5
Site Supporter
Site Supporter
jatrax's Avatar

Join Date: May 2010
Location: Washington Cascades
Photos: Gallery | Albums
Posts: 12,991
If you can fit it in the budget just get the DFA 28-105. Modern glass and coatings with weather sealing.
12-26-2019, 07:10 PM - 1 Like   #6
Veteran Member




Join Date: Dec 2016
Location: Southeastern Michigan
Posts: 4,509
Unless you need the f/2.8 aperture, the Pentax DFA 28-105mm DC WR is the best choice. It has an excellent reputation, a very useful zoom range, is compact and handles well.
12-26-2019, 09:26 PM   #7
Pentaxian
Snapppy's Avatar

Join Date: Jun 2011
Photos: Albums
Posts: 485
QuoteOriginally posted by mbukal Quote
with a limited budget, of legacy which lens would be best for use on the pentax K1, WR doesn't matter, sharpness is essential throughout the frame as well as across the range, always use lens hood, very often use rated aperture, speed and focus accuracy, lens resolution is also important because of the frame cut, 4 lenses are included in the short circle:

1.Toxina ATXPROSV 28-70 / 2.8
2.Tamron 28-75mm F2.8 AF XR Di LD Macro SP
3.Sigma 24-70mm F2.8 EX DG Macro
4.Pentax-D FA 28-105mm F3.5-5.6 ED DC WR


has anyone experience in parallel with at least two lenses of the above
I've owned the Tamron and the Sigma. They can be pretty versatile because of the wide open constant aperture. On the long end wide open it actually takes very pleasant portraits on the K-1 with good bokeh. And then you can stop it down and use it for other scenarios. As mentioned above, if that idea sounds really useful to you then maybe that's the way to go.

I decided I would rather have a cheap nifty fifty for portraits/bokeh/lower light stuff with an even wider aperture, and then go for the 28-105 myself for a walk around/one-in-all landscape trip kind of lens. I still haven't bought one, so I can't comment on it myself, but it's in the works for me soon.

Hope that's kinda helpful.

12-27-2019, 08:41 AM   #8
Pentaxian
mbukal's Avatar

Join Date: Jan 2011
Location: zagreb
Posts: 659
Original Poster
So, Sigma due to the possible incompatibility of the outage, I found on the net more complaints about this issue of Sigma incompatibility with the K1, Tamron 28-75mm F2,8 AF XR Di LD Macro SP vs Toxina ATXPROSV 28-70 / 2.8, the question is now, to be or not to be!
Or Pentax DFA 28-105mm F3.5-5.6 ED DC WR can be used with elevated ISO (up to how high ?) in the range of 28 mm to 70 mm with parallel use of Pentax F28 / 2.8 + F50 / 1. 7 instead of Tamron / Tokin.
Tamron / Tokina optically not in Pentax rank regardless of their large aperture?

Last edited by mbukal; 12-27-2019 at 08:50 AM.
12-27-2019, 02:06 PM - 1 Like   #9
Veteran Member




Join Date: Jan 2012
Location: United States
Posts: 793
I have not been happy with my Tamron 28-75mm f2.8 on full frame other than stopped down to F8. Even then, it doesn't have good colors and the focusing seems always to be off. If I had a second chance, I would have gotten the DFA 28-105mm, it would be a lot better use for landscapes and travel.
12-27-2019, 06:03 PM - 1 Like   #10
Site Supporter
Site Supporter
jatrax's Avatar

Join Date: May 2010
Location: Washington Cascades
Photos: Gallery | Albums
Posts: 12,991
QuoteOriginally posted by mbukal Quote
Tamron / Tokina optically not in Pentax rank regardless of their large aperture?
The advantage of the f/2.8 will be there but that is in light gathering and subject isolation and not in any improved optical ability. Traditionally an f/2.8 lens (at least from OEM makers) would be a premium lens. But that is not always the case with third party makers. And you are comparing an older film era lens with a modern one designed from the ground up for a high resolution camera sensor.


So unless for some reason you really, really need f/2.8 just get the DFA 28-105. IMHO it will be a better lens than any film era zoom, except for not having f/2.8. And if you need that wide an aperture you have your prime lenses. And if you are using a K-1 then it is no problem shooting at ISO 800. Many people use 3200 with no issues but I stay under 800.

Seriously, unless you cannot fit it in your budget get the DFA 28-105. Do not even consider film era zooms unless that is all your budget can support.
12-27-2019, 06:29 PM   #11
Moderator
Site Supporter
Loyal Site Supporter
Sandy Hancock's Avatar

Join Date: Feb 2012
Location: Adelaide Hills, South Australia
Photos: Gallery | Albums
Posts: 11,254
The DFA 28-105 is a fantastic lens for the price. Unless you really need f/2.8 or 24mm, look no further.
12-28-2019, 09:43 AM   #12
Pentaxian
mbukal's Avatar

Join Date: Jan 2011
Location: zagreb
Posts: 659
Original Poster
QuoteOriginally posted by jatrax Quote
The advantage of the f/2.8 will be there but that is in light gathering and subject isolation and not in any improved optical ability. Traditionally an f/2.8 lens (at least from OEM makers) would be a premium lens. But that is not always the case with third party makers. And you are comparing an older film era lens with a modern one designed from the ground up for a high resolution camera sensor.


So unless for some reason you really, really need f/2.8 just get the DFA 28-105. IMHO it will be a better lens than any film era zoom, except for not having f/2.8. And if you need that wide an aperture you have your prime lenses. And if you are using a K-1 then it is no problem shooting at ISO 800. Many people use 3200 with no issues but I stay under 800.

Seriously, unless you cannot fit it in your budget get the DFA 28-105. Do not even consider film era zooms unless that is all your budget can support.

I'm tempted, I own a Tokina ATXPROSV 28-70 / 2.8 since the apsc format, I wanted change because that's not what I expected from a lens f2.8 aperture lens, the Tokina at 28 / 2.8 isn't nearly as my favorite lens on the K1 that I also have since the apsc Pentax F28 / 2.8 but Tokina attached at f3.5 all over the range is very good, reading the tips now I'm in a trilemma, stay with Tokina or sell it and buy Tamron 28-75mm F2.8 AF XR Di LD Macro SP (low probability) or Pentax- D FA 28-105mm F3.5-5.6 ED DC WR (high probability), most likely - (just my guess) - Pentax at 28mm range up to 70mm I could comfortably use on the f4.5 aperture and will be of the same quality as the Tokina when attached to the f4, maybe I'm wrong, the rest of the 35mm millimeter (from 70mm to 105) is pure gain in range, all / the vast majority praise Pentax 28-105 but he's still just a kit lens, I'm in great doubt, could you be more specific with an explanation for or against, it means a lot to me what you wrote - but still not enough to make a final decision
,

Last edited by mbukal; 12-28-2019 at 09:50 AM.
12-28-2019, 10:45 AM - 1 Like   #13
Site Supporter
Site Supporter
jatrax's Avatar

Join Date: May 2010
Location: Washington Cascades
Photos: Gallery | Albums
Posts: 12,991
QuoteOriginally posted by mbukal Quote
the vast majority praise Pentax 28-105 but he's still just a kit lens
When it first came out a lot of people had the same thought. But that is, in my opinion, just a hold over from very old days when the "kit" lens was a cheap one sold as a starter to go with a new camera. It is definitely not true with the DFA 28-105. I bought the DFA 24-70 with my K-1 after a lot of thinking between it and the DFA 28-105. But after some time decided to try the DFA 28-105 also because of all the positive comments. Since then the DFA 28-105 is my most used lens. I use the 24-70 only when f/2.8 is desired and because I have some filters that fit the 24-70 when I want to do long exposure landscape. Image quality (within the same settings) is very comparable. I honestly do not see a difference.

So stop thinking of DFA 28-105 as a "kit" lens and think of it as the slightly slower but longer companion to the DFA 24-70.

Another thought is that almost any modern zoom (kit lens or not) will provide a superior image to any film era zoom except perhaps the very best premium ones like Pentax FA 28-70 f/2.8 and even that is questionable. Lens design has changed a lot in 20 years. And modern lenses are designed for digital cameras instead of film. It makes a difference. Almost any modern zoom like the DFA 28-105 will provide images of comparable quality to the better film prime lenses. In most cases not better, but very close.

If it is possible in your location to rent or to try the DFA 28-105 at a shop I suggest that is the best way to decide for yourself. Everyone has their own standard and things they are particular about so it is always best to see for yourself.

Also, I have some extensive experience with film era zooms, so I can see the difference. This is my Pentax F collection but only the primes get much use these days and then only in special circumstances:

12-28-2019, 02:29 PM - 1 Like   #14
Otis Memorial Pentaxian
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 42,007
QuoteOriginally posted by mbukal Quote
the vast majority praise Pentax 28-105 but he's still just a kit lens
I am not sure who suggested that the 28-105 is a "kit lens" or why that might be considered an indicator of quality. If I were to purchase a K-1, the 28-105 would be my choice for walk-around zoom. Historically, the term "kit lens" has meant that a lens was often offered as part of a lens/body bundle. Often times, the "kit" would be offered at a significant discount from the body-only + lens-only price. This is not a reflection on the quality of either lens or body., For example, your Pentax-F 50/1.7 is a "kit" lens. The best lenses on my shelf had been bundled as "kit".

All that said, you already own the Tokina. If you like it, keep it. If you want quiet in-lens focusing and huge bang-for-the-buck, get the D FA 28-105 and bask in the knowledge that your choice is shared with some of the more prominent K-1 user voices on this site; current pricing is very attractive.


Steve

(...FWIW, the D FA 24-70/2.8 has also been bundled as "kit" with the K-1...)
12-29-2019, 06:58 AM   #15
Pentaxian
mbukal's Avatar

Join Date: Jan 2011
Location: zagreb
Posts: 659
Original Poster
jatrax beautiful collection of F lenses, from what you have in my collection I had:
1.Pentax smc F AF x1,7
2.Pentax smc F 28 / 2.8
3.Pentax smc F 50 / 1.7
4.Pentax smc F 28-80 / 3.5-4.5
5.Pentax smc F 35-70 / 3.5-4.5
6.Pentax smc F 35-105 / 4-5,6
7.Pentax smc F 35-135 / 3.5-4.5
8.Pentax smc F 70-210 / 4-5.6
I started collecting the F lens collection and using it in apsc format, about 11 years ago, sold out ,only the first three kept for ff


jatrax says: "So stop thinking of the DFA 28-105 as a" kit "lens and consider it a slightly slower but longer companion to the DFA 24-70. The second thought is that almost every modern zoom (kit lens or not) will provide a superior image either which movie zoom, except maybe the best premium models like the Pentax FA * 28-70 f / 2.8, and even that is questionable .... I have a wealth of experience with the movie era zoom, so I can see the difference. "

stevebrot says, "... you already own the Tokina. If you like it, keep it. If you want quiet in-lens focusing and a huge bang-for-the-buck, get the D FA 28-105 ..."

my most important feature for instant lens replacement is optical quality, in your presentations I have concluded that the current Tokina meets this characteristic (maybe I'm wrong? correct me)

Last edited by mbukal; 12-29-2019 at 07:09 AM.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
budget, f2.8, ff lens, frame, k-mount, lens, macro, pentax lens, slr lens, wr
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Limited lens for a limited budget heinamj Pentax DSLR Discussion 33 12-04-2016 12:03 AM
First lens for my first FF camera, on a somewhat "tight" budget. laTimo Pentax K-1 & K-1 II 56 04-14-2016 06:47 AM
My budget for FF.......... RonHendriks1966 Pentax Full Frame 107 02-11-2016 07:55 AM
Pentax FF setup versus APSC budget biz-engineer Pentax Full Frame 89 10-02-2015 10:48 AM
Low budget FF digital? ihasa Canon, Nikon, Sony, and Other Camera Brands 28 06-17-2012 07:52 PM



All times are GMT -7. The time now is 10:45 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top