Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
11-22-2014, 02:38 PM   #1
Site Supporter




Join Date: Nov 2014
Posts: 211
645Z lens choice



Hi All - Id appreciate your thoughts on lens choice for my new 645Z primarily for landscape and portraiture. I've also contacted one or two 645Z users directly , so apologies if I'm duplicating my question to anyone.


I've just tried my 45mm and 165mmLS 67 lenses on my new 645Z with the Photodiox adapter , with mixed results.....the 45mm landscape shots were rather 'mushy' and the 165mm hit and miss (OK on higher contrast images , but again 'soft' on landscapes) ......I also tried a used 120mmF4 FA macro with some success, but again not as good as I had been led to believe from reading other online reviews (eg I read "tack sharp out of the camera...", but my RAW files look a soft and a tad 'milky')
I guess my question is do I have to 'bite the bullet' and invest in the new DFA lenses (55mm , 28-45mm and 90mm macro) to get the best out of the new sensor?
Regards to all , Ian ( in Canada and UK)



11-22-2014, 04:41 PM   #2
Inactive Account




Join Date: Oct 2014
Posts: 91
You found the 120 not sharp? Either you have a bad copy or you doing something wrong. I use it for jewelry and the thing IS sharp. The 90 is sharper, but you can't get 1:1 macro. The DFA lenses are better for sure. But the 120 is not a bad lens. Not at all. The 25, I got it and returned it in favor of the28-45 which is much better.
11-23-2014, 11:48 AM   #3
Site Supporter




Join Date: Nov 2014
Posts: 211
Original Poster
Thanks

Hi Victor - many thanks...I was not using the 120mm macro for close-up , but for architecture and landscape....an architecture pic (church interior) looked good after Lightroom processing but seemed to need a lot of 'Clarity/Contrast' processing to get micro-contrast I expected into the picture.....perhaps my expectations were too high as I have been spoiled by the detail from my Nikon D800 images (which are already at 36MP) and was perhaps expecting the same jump in image quality as when I upgraded from my previous 20MP Nikon..? Anyhow I will try the 120mm again to check if I am making any fundamental errors , as I must admit I am not yet accustomed to the shallower depth of field from the 645...
Noted what you say about the newest DFA lenses.


I did look at your website , and was very impressed by the jewellery shots , and the 'behind-the-scenes' set-ups you showed...obviously lots of 'tricks of the trade' , experience, and patience required to get the 'look' your clients want!
Thanks again , Ian
11-23-2014, 11:55 AM   #4
Site Supporter
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 5,705
Ian,
post up some shots if you like and we can help you figure out whats going on.
I find my A120Macro to be one of my best landscape lenses - there is no problem at all using it on the 645D. Even with an increase in resolution from the Z, i do not believe this and several of the older A- lenses, for example, will leave you wanting.

11-23-2014, 10:18 PM   #5
Inactive Account




Join Date: Oct 2014
Posts: 91
QuoteOriginally posted by BostonUKshooter Quote
Hi Victor - many thanks...I was not using the 120mm macro for close-up , but for architecture and landscape....an architecture pic (church interior) looked good after Lightroom processing but seemed to need a lot of 'Clarity/Contrast' processing to get micro-contrast I expected into the picture.....perhaps my expectations were too high as I have been spoiled by the detail from my Nikon D800 images (which are already at 36MP) and was perhaps expecting the same jump in image quality as when I upgraded from my previous 20MP Nikon..? Anyhow I will try the 120mm again to check if I am making any fundamental errors , as I must admit I am not yet accustomed to the shallower depth of field from the 645...
Noted what you say about the newest DFA lenses.


I did look at your website , and was very impressed by the jewellery shots , and the 'behind-the-scenes' set-ups you showed...obviously lots of 'tricks of the trade' , experience, and patience required to get the 'look' your clients want!
Thanks again , Ian
Thanks!
11-24-2014, 01:25 AM   #6
Junior Member




Join Date: Jul 2014
Posts: 49
Hi Ian

As I said in my email to you the lenses (a, da) are all excellent...notwithstanding any faulty ones. But very good technique is required: MLU, timers and rigid tripod etc. I switch of auto focus for landscape work and use the excellent live view.

Yes shallow depth of field is an issue and symptomatic of a larger sensor. Focus stacking is helpful, depending on subject matter.

I find that in my work I apply less sharpening than to dslr files. In fact I apply little or no output sharpening for printing up to 30inches. The sensor is that good. I depend on the texture of the paper to add perceived sharpness.

My Facebook page has some of my latest 645z images: www.fb.com/guyaubertinphotography

Feel free to ask away. I have been using the 645z system for several months and find it amazing.

Guy
11-25-2014, 02:40 AM   #7
Site Supporter




Join Date: Nov 2014
Posts: 211
Original Poster
Lens choice

Thanks again Guy - tried the 165mmLS again yesterday , and got some good results, although the 45mm still looks a bit soft...
Will try out the new 90mm macro this week , to see if its as good as the reviews....
I like the animal/people images on your website....
Thanks again , Rgds, Ian
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!
45mm, 645d, 645z, camera, choice, landscape, lens, lenses, macro, medium format, portrait, question
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
old lens for 645z adwb Pentax Medium Format 13 10-24-2014 06:43 PM
Kit lens choice..?? 2put Troubleshooting and Beginner Help 10 11-16-2013 04:18 PM
Lens Choice theWags Pentax SLR Lens Discussion 5 11-10-2013 01:06 AM
Lens choice questions wally1 Pentax SLR Lens Discussion 7 08-05-2013 02:59 PM
Lens choice question. Gord K. Troubleshooting and Beginner Help 7 04-20-2013 08:56 AM



All times are GMT -7. The time now is 01:27 AM. | 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