Showing posts with label 100mm. Show all posts
Showing posts with label 100mm. Show all posts

26 September 2015

and then I remembered!

oh if you just got here you missed the good part...

I'll start over:
Several months ago, after picking up two K-r bodies, I remembered just what using a penta-mirror viewfinder was like. (Hint: not good.) I sought options that would enable me to see well enough to focus manually, as at the time I owned several manual primes.  This was also the time when KatzEye bright focusing screens disappeared as the company dealt with financial issues, so the best-known option was unavailable.

So off I went to the search engines, seeking bargain alternatives.  I found a mystery auction dealer that sold one-fits-all Pentax screens for under $20 and ordered a split screen fresnel collared screen.  It took a while to get here but i jumped in when it reached me.

only to find it didn't fit!
The screen was labeled for K-7 only but I was pretty sure it was not so exclusive.  The K-r swap was new to me though, and clearly it wasn't working - so I sought to return the screen for a refund.

only I never sent it back!
So here's where you came in: today I remembered it had not left my shelf.  I still have several manual focus lenses.. but now a K-s1 body makes use of them.  Could it be possible that the old cheap screen would fit the new camera?

yes it can.
So now the K-s1 has focus peaking And a more precise focus screen.  Test images show that it aligns just fine.
Overkill perhaps, but the screen is here anyway.. so why not?

21 July 2015

the Home Team

Here is the shooting team as it stand today.. at 4:30PM.. Pacific Time!*
The starting five: DA 15/4 Limited, SMC 24/2.8, DFA 50/2.8 macro, M100/2.8 and DAL 55-300
Support crew: Vivitar 35-105, DAL18-55, Hanimar 400/6.3, JCPenney 80-200/3.5 (and 2x TC)
Not shown here: the K-r and SMC-A 50/2 that took the photo!

* Still valid as of early August - that might be a record :·p 
One more may be coming though -- stay tuned?

15 July 2015

revenge of the primes

It's been a big 3 weeks of gear-trading!
 - and I did not see it coming.  I made my plans but the path meandered a bit..

It began with a great deal on a DA* 50-135 followed by an absurd deal on a DA17-70.  The DA* is a great lens, but the 55-300 was holding strong to its place in the lineup; slower yes and in more ways than one, but so much more convenient and less bulky.  While contemplating next steps I sent away a lot of gear the 50-135 rendered less relevant in hopes of grabbing a used DA14 or DA15; neither was available so instead I came away with a gently-used DA10-17 Fish-Eye.
 Then an trade offer hit the forum: Limited primes for DA* zooms!  With a minimal amount of negotiation I came away with the DA15 and DA40  - and the 55-300 retained its place.  In theory I gained value with both the great price on the 50-135 and again with the two primes; value was important but in practical terms I'll use the Limited primes more often than the bulky DA* zoom.
Speaking of value, the DA15 was a sure bet to crowd out the 10-17 since an ultrawide prime was my original goal - so the 10-17 became available to sell and recoup some expenses.  And after some hard thinking I decided the DA15 plus 24-40-50-100 primes was more userful and practical to me than the 17-70.. so that zoom also became expendable.

Today those two zooms left the building, victims of the DA15 and the primes in my bag.  The NX300 and 135mm lens left two days earlier, so cupboards are quite bare - but the remaining lenses are quite uniformly excellent and very well matched.  On a scale to 10, forum users review my lenses thusly:
DA15 / K24 / DA40 / M100 / 55-300 -> 9.2 / 8.6 / 9.6 / 9.3 / 8.8
While those are just opinions, experience shows these to be reasonable estimates - and my prices were seriously low which increases the value factor.  The low rating on my list is the smcA 50mm f/2, which is underrated by its proximity to the 50mm f/1.7 variants.

- But wait!   One last deal remains to be sorted, as a DFA 50/2.8 1:1 macro arrives tomorrow to contest with the DA40 Limited.  If the macro (user rating 9.4) wins out the DA40 will likely sell for a net gain of funds, as the DFA was priced lower than I'd have expected.

In the end I saved on several levels: weight, expense, aperture (all except the DA15 are f/2.8 or faster).  Add in the imminent arrival of the supercompact K-s1 dSLR and those primes will really be able to show their best: the faster AF motor and absence of a low-pass filter means my images will be as good as anything currently available.  Oh sure, 42 megapixels beats 20M every day   And when you can afford the camera with that sensor..- when you can store them.

Stay tuned! Another group photo will be coming soon !
In the meantime a bit of humour:
less than a month ago I posted
this as my "power team" lens set - 
now only the 55-300 (far left) remains!


11 July 2015

Goodbye Hello

A few 'last' changes to the gear just came about.  Reasons are complicated but sound, not merely an excuse to acquire .. not this time!

I broke down and bought a white K-s1 body after refusing the siren call a few times as the price drifted lower.  This is not the body or the color I would choose if all options were open, but financially this was an easy call.  It was the last one in stock so acquired an extra 20% discount which dropped the price below $280.  Memories of the white K-01 come to mind: it fell to about $235 when I picked it up a few years back. Today a similar price nabs a nice AA-free 20Mpx camera with full viewfinder in a baby body.  Sure it has a few compromises, but if the K-r is acceptable the K-s1 definitely will serve me well!

This camera brings me to the end of my Samsung days.  That's a shame as the NX300 is a great little camera and the 16+30 pancake primes are most excellent.  I now have the Pentax 15+40 Limited lenses though, so optically I lose very little and logistically I have just one mount to consider going forward.  The nx300 sold in about three hours, so the price must have been on the slightly low side of just right.. or the ideal person read my note at just the right time!

Never the same-  DA40 and 15, M135*, K24 A50* and M100 with zooms behind.  Shot with *NX300 (* =departing soon).

The M135 departs with the Samsung along with NX adapters.  That leaves 15-24-/40-55/-100 plus 55-300 zoom, along with a spare 18-55 & a few old zooms to play with.  The M100 f/2.8 just arrived from KEH (mounted on the K-r) and yet again their Ugly rating is vastly underrated; it's in great condition with only a few meaningless cleaning-marks on the front element.

The new small kit also earns a new small camera bag*, a sling type that can hold a small dSLR 4 primes and a zoom.  My days of needing a pack that can hold camera and bike gear plus laptop and spare work clothes are long gone, after all.
image from pentaxforums.com

Never last and surely not least: Adorama offered up a VG-grade DFA 50/2.8 1:1 macro,  a well-regarded macro lens that I have not tried.  If this works well the DA40 can go for more than the 50's cost, adding a smidge more money to the bank for future use.  Hope it's a keeper, as it has AF + quick shift; that will result in precise and fairly speedy focus yet still allow for precise touch-up.  The Tamron push-pull MF design really didn't fit my mind - so I'm thinking this will feel a lot better!
In any case the smc-A 50mm f/2 can depart; the DA40 or FA50 will do the job.

 - -  - -  - -  - -  - -  - -  - -  - -  - -  - -
* so much for camera bags from China.  I ordered the pack above in Gold only to hear back that the seller only had black, was that OK?  Hmm, the company has two separate listings for gold models but only have black - oh and a few red (but no listings show the red version).  No thanks - refunded.  I then found this blue one, identical to the other store and also in China.  Yay?  No they have no blue - just black, and a few red.  This group Also has no red one showing online, so I got another refund.  This time I saved $20 and just bought an insert that will pad the bottom parts of my hydration pack.
You guessed it: I bought it in red!  That will match my red/black pack but at least I know what this red pack looks like!!

16 March 2015

group photo, at last

Everyone that I'm expecting has gathered at last!  Here's a shot with the nx300 and 50-200 III, which as noted has an uncertain future here - the Pentax primes are faster and lighter so may win out despite their lack of stabilization.  Note that the lens hood on the 16mm fits all three NX primes


I've added a new contestant to the group: the Pentax SMC-A 50mm f/2 refuses to be sold, and is more compact and brighter than its macro cousin.  If I were to go with dipoter lenses for close focus, why not go smaller?  The 150mm at far right has displaced the 135mm f/3.5 for better spacing from the 100mm; yet another surprisingly good price for the 150 makes it happen.

This lineup simply must do for now - even the minimal tax return is spoken for in other places, and the gear collection must get only smaller.  Acquisition is far more fun, that's for sure!  The Pentax 135 and maybe the 50 macro could go, as well as the 50-200 III.  I'm also not convinced that I need 16 20 and 30mm NX lenses, but the 16 became available while the 20 worked its way to my home.   More tests (50 v 50, 16 v 20) will be needed!  Gosh I suck at  lens tests, far more fun to read than to perform properly.

24 February 2015

tiny lenses rule!

Whether on a Pentax dSLR or the small Samsung NX bodies, small and light lenses are great to have on hand.  The 16 and 30mm NX are 'prime' examples %( but Pentax also makes small ones - and they even work on full-frame film bodies!

Shown here are the Samsung 30mm f/2 plus Pentax 50/2.8 (1:2 macro!), 100/2.8 and 135/3.5.  The K:nx adapter is similar in size to the 30mm.


These four lenses, along with the nx300 and 16/2.4 lens that took this image, can fit into a mighty small space.. And some day soon the NX 20mm f2.8 will join in.  The other small-carry option is 16, 30 and 50-200 Samsung lenses, the latter with in-lens stabilization (but somewhat slow at f/4-5.6). Nice choices to have!

29 April 2013

90 v 100 on a few subjects

The Quantaray/Sigma 28-90 arrived today, so I put it to a few tests against my well-liked Promaster 100mm macro.  Both do about 1:2 closeups in native mode; the Promaster includes a 49mm filter-type multiplier to achieve 1:1 but I seldom use it, so 1:2 seems sufficient for me.  The lenses don't compete on speed, since it's 100/3.5 vs 90/5.6, but what the heck we'll put them head to head anyway.

A few quick tests at 1:2 were not definitive so I shot the neighborhood to see the results.  In the climatis-and-mailbox shot the Q-ray image was decidedly better in exposure, avoiding the major blowout of highlights that the Promaster displayed.  Just a single shot but a clear difference.  Looks like a flower horse, but truly it's not!

Later I shot a closeup of our porch post with many things behind; both shots have rather nervous bokeh on display, so again no clear victor.  I shot these through a window, which helps neither lens show off to its best effect.

Let it be noted that the Q-ray focus is slower and feels more precise, and it covers its full range in about 1/4 turn.  The Promaster nearly goes full circle, meaning if it misses you'll be waiting a while for it to get close again.  Enough victories that maybe the 100mm will be sent packing.

In the wide department the same could happen with the Sigma 15mm fisheye.  It takes some excellent and fun images, but the 17-35 Tamron non-fisheye is clearly a winner and both are f/2.8 - still counting votes on the result there.
Posted by Picasa

04 January 2013

2013 begins!

And so the new year sweeps in.  Portland had no frost until the 29th, then three straight frosty mornings; winter arrived at last.  I pulled out the Promaster 100mm macro and visited the fungi in the front yard, and got a few keepers.  Some day I will do this with a tripod and 2-second mirror lockup... oh wait this was shot with the K-01, no mirror to lock up!  Funny how old habits and reflexes go, some slide past with no regret while others stay locked into memory and refuse to budge.  Shooting macros handheld is an old habit that I've yet to shake - just often enough, it works well enough.

The K-01 is clearly a different way to work compared to dSLRs, but it's not a bad way.  Many things I felt sure of were not important to getting an image, and some are nearly fun (like time-lapse movies, though that will take more practice).

In any case, 2013 should be a fun year to take pictures!
Posted by Picasa

02 September 2012

dominoes

This is what happens to supposedly-stable lens collections: a period of stability and satisfaction ends with a deal that's just too good to pass up.  Whether or not it really was too good the transaction happens - and one deals with the aftershocks.  If it wasn't all that good after all it moves on; if it's really good though, other lenses are re-evaluated for either quality (not as good?) or focal length (this lens FL of x makes an adjacent-FL lens or two expendable) or some other quality (why do I now own so many macro primes?).

The Sigma 50mm f/2.8 macro seemed my ideal 'last lens' that fit perfectly into the slot between 28 and the 70-150 zoom.  It has AF, it's reasonably fast (both focus and aperture) and 1:1 macro.  But then came the 100mm f/3.5 macro, which is pretty nearly as good at all those things in a longer yet lighter form.  Yes it's just 1:2 without the adapter element, but I seem to be OK with that 90% of the time*.   If it's so good at 100mm I won't carry the 70-150 - but then I have 28 50 and 100 - two of which are macros?  Might as well lighten the load with a manual 50 to go with the all-manual 28!  Yes that makes sense, and here's a 50/1.7 SMC-A for aperture control on the camera, how nice.  A few chats and clicks and it's on its way.

Then shock #2 hits in the form of a bargain used DA40 Limited pancake lens.  One has to see this lens to understand what 'pancake' means in the lens business - and it seems one must try a Limited lens to know what that means!  This will be my first, and seldom does one stop at just one.  The 50/1.7 has not arrived yet but it seems that its place has been stolen away: here is a tiny, sharp and fast-AF gem .. and 'tis said that the DA40 works with film or a future full-frame digital Pentax, so both my 50s are matched even there!

Now far too many dominoes are near to falling - time for 'damage' control, meaning a few choice lenses must go to feed the new beasts.

In any case, the journey continues for "my ideal kit".
I'm fully aware that it's a myth yet I cannot help but seek it...

* hey, that 49mm macro adapter fits on Limited primes!

19 August 2012

trying out another macro


Well, here's just one comparison between the 'new' Promaster 100mm f//3.5 and my Sigma 50mm f/2.8.  Both are shot around 1:2 closeup, which is the 100mm native max (but comes with a matched closeup lens for 1:1).  Both look quite nice and sharp here at f/4.5; the Sigma is a touch bluer and lower key but other shots did not show this.  Another shot was more of a bokeh torture test and showed the Sigma looks a bit better in that regard - but at double the focal length so many parameters change!  So often in testing a single shot will show things that will not prove repeatable, so one must learn a little then learn to let go of what one wants to believe is "always true".

This Promaster was surprising, as it looks identical to the somewhat-revered Cosina known as the "plastic fantastic".  That lens has reviews in many places, and once again shows that what is "always true" isn't.  The Cosina feels fragile, sounds like a meat grinder when focusing, and cannot be used in manual focus because of the grip/slip nature of turning the ring by hand.

I will let stand the plastic part, as it does feel like a less-durable plastic than most lenses - but like every screw-drive lens I own the AF is a short buzz and MF has less resistance than I'd like.  I posted at pentaxforums and found another owner with the same result.. so something has changed since those Cosina reviews were released, apparently.  I paid more than the average Cosina price too, but given how it exceeds the reviews I'm OK with that.

In any case, a 205-gram 100mm lens that can do 1:2 closeups with no effort sounds good to me!  It could shake up the kit again around 50mm if this knocks the Sigma off its macro perch.  I expect the Sigma is better overall - but one thing that is "always true" is that no macro lens is a bad lens.  That can't always be true can it? :^)  The Tamron 90 is an excellent lens but at 400+ grams it stayed home too often; at about half the weight for similar results, the Promaster can stick around a while.

Posted by Picasa